Allergies : Symptoms

Healthline's Premium Tools

Symptom Search
Explore other causes of
Hives
Itching
Rash
Pill Finder
Search by color, shape and markings. click here
Drug Interaction Checker
Check any 2 drugs for interactions. click here
Drug Compare
Compare any two drugs side by side. click here
Healthline Part D Plan Selector Medicare Part D
Medicare's drug plans are subsidized by the US federal government and offered through insurers.
Advertisement
Marketplace
Symptoms could include:
Allergy symptoms vary, but may include: Breathing problems; Burning, tearing, or itchy eyes; Conjunctivitis (red, swollen eyes; Coughing; Diarrhea; Headache; Hives; Itching of the nose, mouth, throat, skin, or any other area; Runny nose; Skin rash...
Source:ADAM
Date:February 15, 2007
Symptoms depend on the specific type of allergic reaction. Allergic rhinitis is characterized by an itchy, runny nose often with a scratchy or irritated throat due to postnasal drip. Inflammation of the thin membrane covering the eye (allergic con...
Source:Gale Encyclopedia of Alternative Medicine
Allergens enter the body through four main routes: the airways, the skin, the gastrointestinal tract, and the circulatory system. Airborne allergens cause the sneezing, runny nose, and itchy, bloodshot eyes of allergic rhinitis (hay fever). Airbor...
Source:Gale Encyclopedia of Children's Health
Minor injury, such as scratching, causes itchy welts to develop in about 5% of people. The presence of itchy welts (urticaria) is a condition is called dermographism. Cold can change certain proteins in the blood so that they induce an immune reac...
Source:Gale Encyclopedia of Medicine
Allergens enter the body through four main routes: the airways, the skin, the gastrointestinal tract, and the circulatory system. Airborne allergens cause the sneezing, runny nose, and itchy, bloodshot eyes of hay fever (allergic rhinitis). Airbor...
Source:Gale Encyclopedia of Medicine
Symptoms depend on the specific type of allergic reaction. Allergic rhinitis is characterized by an itchy, runny nose, often with a scratchy or irritated throat due to post-nasal drip. Allergic conjunctivitis (inflammation of The allergic response...
Source:Gale Encyclopedia of Nursing and Allied Health
Abdominal pain is pain that you feel anywhere between your chest and groin. This is often referred to as the stomach region or belly.
Source:ADAM
Date:April 25, 2008
Antispasmodic drugs relieve cramps or spasms of the stomach, intestines, and bladder. Purpose Antispasmodic drugs have been used to treat stomach cramps.
Source:Gale Encyclopedia of Medicine
New and severe abdominal pain always needs to be closely evaluated by a doctor. It is frequently a sign of serious illness.
Source:StayWell
Repeated episodes of abdominal pain can arise from a variety of medical causes, including some serious conditions. Everyone who has unexplained abdominal pain requires a medical evaluation by a doctor.
Source:StayWell
Most of the time, children with mild abdominal pain are not seriously ill; the symptoms go away in a day or two and can be managed at home. However, if your child has severe abdominal pain or has a bellyache along with frequent vomiting, you should contact your child's pediatrician.
Source:StayWell
Abdominal pain is very common in children, and in many cases there’s no serious cause. But stomach pain can sometimes point to a serious problem, such as appendicitis, so it is important to know when to seek help.
Source:StayWell
Chest pain is discomfort or pain that you feel anywhere along the front of your body between your neck and upper abdomen.
Source:ADAM
Date:April 29, 2008
Choking is when someone can't breathe because food, a toy, or other object is blocking the airway (throat or windpipe).
Source:ADAM
Date:January 16, 2007
Choking is a condition caused by inhalation of a foreign object that partially or fully blocks the airway. Choking is a major cause of respiratory emergencies and cardiac arrest in infants and children.
Source:Gale Encyclopedia of Children's Health
This is an extreme medical emergency. Knowing what to do can help save your baby's life.
Source:StayWell
Choking sends thousands of infants and toddlers to emergency rooms each year, and food often plays a part.
Source:StayWell
Blockage of the throat or windpipe by an object. Choking is a major cause of death for children under three, and is a hazard for older children as well.
Source:Gale Encyclopedia of Childhood and Adolescence
Although people know toys can be dangerous, injuries can still occur.
Source:StayWell
One minute you and your child are laughing at the dinner table. The next minute the child is choking. Here's what you should do.
Source:StayWell
Choking is the inability to breathe because the trachea is blocked, constricted, or swollen shut. Choking is a medical emergency.
Source:Gale Encyclopedia of Medicine
First Aid: ChokingCall 911 if the victim loses consciousness.Choking occurs when the airway to the lungs becomes blocked, placing the victim's life in danger. Start rescue techniquesright away.1Identify ChokingLook for a hand raised to the throat,...
Source:StayWell
Detailed information on choking, choking prevention, and the Heimlick maneuver
Source:StayWell
If a person who is choking is still able to speak, their airway does not have a significant obstruction, so the Heimlich maneuver should not be performed.
Source:StayWell
Conjunctivitis is inflammation or infection of the membrane lining the eyelids ( conjunctiva ).
Source:ADAM
Date:November 13, 2007
Conjuctivitis is an inflammation resulting in redness of the lining of the white part of the eye and the underside of the eyelid (conjunctiva) that can be caused by infection, allergic reaction, or physical agents like infrared or ultraviolet light. Conjunctivitis is the inflammation of the conjunctiva, a thin, delicate membrane that covers the eyeball and lines the eyelid.
Source:Gale Encyclopedia of Children's Health
Detailed information on conjunctivitis, including causes, types, symptoms, diagnosis, and treatment
Source:StayWell
Conjunctivitis is an infection or inflammation of the conjunctivae, the thin layer of cells which covers the surface of the sclerae (whites) of the eye and also the inside of the lids. Conjunctivitis can be caused by a number of conditions, varying with the age of a child.
Source:Gale Encyclopedia of Childhood and Adolescence
Detailed information on conjunctivitis, including cause, types, symptoms, diagnosis, and treatment
Source:StayWell
Conjunctivitis Caused by InfectionInfections are caused by viruses or bacteria. Treatment includes keeping your eyes and hands clean.
Source:StayWell
Conjunctivitis may be caused by allergies or other irritants. The problem can keep coming back. Sometimes an eye infection will result. Treatment involves relieving the symptoms and avoiding the cause of the irritation.
Source:StayWell
Detailed information on allergic conjunctivitis, including symptoms, diagnosis, and treatment
Source:StayWell
What Is Conjunctivitis?Conjunctivitis is an irritation or infection of the membrane that covers the white of the eye and the inside of the eyelid(conjunctiva).It can affect one or both eyes.
Source:StayWell
Coughing is an important way to keep your throat and airways clear. However, excessive coughing may mean you have an underlying disease or disorder. Some coughs are dry, while others are considered productive. A productive cough is one that brings up mucus. Mucus is also called phlegm or sputum. Coughs can be either acute or chronic: Acute coughs usually begin suddenly. They are often due to a cold , flu , or sinus infection. They usually go away after 2 to 3 weeks. Chronic coughs last longer than 2 to 3 weeks.
Source:ADAM
Date:January 18, 2008
Coughs, those mini-explosions in your throat, are valuable weapons in your body's self-defense arsenal. Their assignment: keep airways clear by quickly expelling intruders from the lower respiratory system -- principally your throat and upper lungs. If dust, fluid, viruses, bacteria or even tumors block any part of this region, your cough reflex takes explosive action.
Source:StayWell
Your doctor should evaluate you if you are having symptoms that suggest a more serious cause, such as a bacterial infection, or if your symptoms aren't manageable with over-the-counter remedies or the passing of time.
Source:StayWell
A cough is a forceful release of air from the lungs that can be heard. Coughing protects the respiratory system by clearing it of irritants and secretions.
Source:Gale Encyclopedia of Children's Health
A cough is a forceful release of air from the lungs that can be heard. Coughing protects the respiratory system by clearing it of irritants and secretions.
Source:Gale Encyclopedia of Medicine
A cough is a forceful release of air from the lungs that can be heard. Coughing protects the respiratory system by clearing it of irritants and secretions.
Source:Gale Encyclopedia of Alternative Medicine
Diarrhea is loose, watery, and frequent stool. Diarrhea is considered chronic (long-term) when you have had loose or frequent stools for more than 4 weeks.
Source:ADAM
Date:February 20, 2008
Detailed information on diarrhea, including causes, symptoms, diagnosis, and treatment
Source:StayWell
Oncology: Controlling DiarrheaDiarrhea(loose stools) is a common side effect of chemotherapy and radiation therapy. Diarrhea results when treatment affects the normal cells lining the intestine.
Source:StayWell
Diarrhea From ChemotherapyDiarrhea can occur in cancer patients for a number of reasons. The tumor itself can bring on this side effect, as can changes in diet or an infection in the intestine.
Source:StayWell
Detailed information on diarrhea, including causes, symptoms, diagnosis, and treatment
Source:StayWell
Detailed information on diarrhea, including causes, symptoms, diagnosis, and treatment
Source:StayWell
Detailed information on diarrhea, including causes, symptoms, diagnosis, and treatment
Source:StayWell
Detailed information on diarrhea, including causes, symptoms, diagnosis, and treatment
Source:StayWell
Detailed information on traveler's diarrhea, including causes, symptoms, diagnosis, and treatment
Source:StayWell
If your diarrhea is substantial, if you have other unexplained symptoms such as fatigue, abdominal pain, weight loss, or blood in your bowel movements, or if your diarrhea has persisted for more than five days, you should visit with your doctor to discuss your symptoms.
Source:StayWell
We all dread diarrhea. But when the patient is your infant or toddler, diarrhea can range from a minor annoyance to a medical emergency.
Source:StayWell
Common causes of diarrhea in babies include infections of the stomach and intestines (gastrointestinal tract) or changes in diet. Most cases of diarrhea are not serious, go away in a day or two and can be managed at home.
Source:StayWell
Answering the questions in this tool will help you understand more about the possible causes of diarrhea in children, and will help you decide when to call your doctor.
Source:StayWell
To most persons, diarrhea means an increased frequency or softer consistency of bowel movements; however, the medical definition is more exact than this. Diarrhea best correlates with an increase in stool weight; stool weights above 300 g per day generally indicates diarrhea.
Source:Gale Encyclopedia of Alternative Medicine
Red eyes are caused by enlarged, dilated blood vessels leading to the appearance of redness on the surface of the eye.
Source:ADAM
Date:November 13, 2007
Understanding Red Eye: Treating the InfectionEye infections are most commonly caused by viruses or bacteria. Sometimes they are caused by an infection in another part of your body.
Source:StayWell
Do your eyes swell and itch when you pet a cat? Do they get red, watery, and itchy every spring or summer? If so, you may have an allergy to animals or pollen. Along with dust and mold, animals and pollen are the most common causes of allergies.
Source:StayWell
Understanding Red Eye: CausesDo your eyes sometimes get red and irritated? This could be a sign of irritation or infection.
Source:StayWell
A headache is pain or discomfort in the head, scalp, or neck. Serious causes of headaches are extremely rare. Most people with headaches can feel much better by making lifestyle changes, learning ways to relax, and occasionally by taking medications. See also: Tension headache Cluster headache Migraine with aura Migraine without aura
Source:ADAM
Date:June 19, 2008
A headache is a pain in the head and neck region that may be either a disorder in its own right or a symptom HEADACHE THERAPIES Type Acupressure Press pointer fingers beneath cheekbones and parallel to pupils (Stomach 3) for one minute. Squeeze fleshy area between thumb and pointer finger (Large Intestine 4) for one minute.
Source:Gale Encyclopedia of Alternative Medicine
This report helps you identify the cause of your headache and learn what to do about it. Includes the latest treatments, such as new medications and mind/body techniques.
Source:StayWell
Detailed information on headaches, including the different types of headaches and statistics relating to headaches
Source:StayWell
A headache involves pain in the head which can arise from many disorders or may be a disorder in and of itself. There are three types of primary headaches: tension-type (muscular contraction headache), migraine (vascular headaches), and cluster.
Source:Gale Encyclopedia of Medicine
About 90 percent of all headaches are harmless episodes that can be treated with over-the-counter painkillers, either alone or together with rest, ice packs or relaxation techniques.
Source:StayWell
A headache involves pain in the head that can arise from many disorders or may be a disorder in and of itself. Headaches can be categorized as primary or secondary.
Source:Gale Encyclopedia of Children's Health
Most headaches in kids are caused by tension, not disease. Your pediatrician can determine what kind of headache your child has.
Source:StayWell
Headache is a pain in the head and neck region that may be either a disorder in its own right or a symptom of an underlying medical condition or disease. The medical term for headache is cephalalgia.
Source:Gale Encyclopedia of Neurological Disorders
Youngsters' most common head pain is a tension headache—a dull ache that feels like pressure around the head.
Source:StayWell
When seeking treatment for headaches, start with your primary care provider. Most people who suffer from headaches tell their doctors about their pain only as an afterthought. And 31 percent have never seen a health care provider for their condition, according to the National Headache Foundation (NHF). The result is a lot of needless suffering.
Source:StayWell
Detailed information on headaches, including types, symptoms, diagnosis, and treatment
Source:StayWell
An old theory about the connection between headache and high blood pressure makes a comeback.
Source:StayWell
Can dehydration cause headaches? Howard LeWine, M.D., is chief editor of Internet Publishing at Harvard Health Publications. He is recognized as an outstanding clinician and teacher and is a recipient of the Internal Medicine Teacher of the Year award at Brigham and Women's Hospital. Dr. LeWine continues to practice Internal Medicine; most recently he became a hospitalist after practicing primary care for over 20 years.
Source:StayWell
Detailed information on headaches, including the different types of headaches and statistics relating to headaches
Source:StayWell
Hives are raised, often itchy, red welts on the surface of the skin. They are usually an allergic reaction to food or medicine.
Source:ADAM
Date:April 12, 2007
Detailed information on urticaria, also called hives, including what food and medicines commonly cause hives
Source:StayWell
Detailed information on urticaria, also called hives, including what food and medicines commonly cause hives
Source:StayWell
Hives occur when something prompts cells to release histamine, a chemical found in the skin.
Source:StayWell
What is the best way to treat exercise-induced hives? Also, is this a condition that will eventually just go away? I've been living with it for about four years now -- I get hives everyday when I work out if I don't take an over-the-counter antihistamine.
Source:StayWell
Hives is an allergic skin reaction causing localized redness, swelling, and itching . Hives is a reaction of the body ' s immune system that causes areas of the skin to swell, itch, and become reddened (wheals).
Source:Gale Encyclopedia of Children's Health
Hives is an allergic skin reaction causing localized redness, swelling, and itching. Hives is a reaction of the body ' s immune system that causes areas on the surface of the skin to swell, itch, and become reddened (wheals).
Source:Gale Encyclopedia of Nursing and Allied Health
Hives is an allergic skin reaction causing localized redness, swelling, and itching . Hives is a reaction of the body ' s immune system that causes areas of the skin to swell, itch, and become reddened (wheals).
Source:Gale Encyclopedia of Medicine
Hives are an allergic skin reaction causing localized redness, swelling, and itching . Hives are a reaction of the body ' s immune system that causes areas of the skin to swell, itch, and become reddened.
Source:Gale Encyclopedia of Alternative Medicine
Can hormonal changes after giving birth cause hives? Rebecca Campen, M.D., J.D. is an Assistant Professor of Dermatology at Harvard Medical School and former Deputy Director of the Harvard/Massachusetts General Hospital Cutaneous Biology Research Center (CBRC). She currently serves as Senior Advisor to the CBRC and divides her time between clinical practice of dermatology at the Massachusetts General Hospital and private practice in Savannah, Georgia. Dr. Campen is the author of two books for medical students and residents, Going Into Medical Practice and Blueprints in Dermatology.
Source:StayWell
Nasal flaring refers to enlargement of the opening of the nostrils during breathing.
Source:ADAM
Date:May 8, 2008
Itching is a peculiar tingling or uneasy irritation of the skin that causes a desire to scratch the affected area.
Source:ADAM
Date:July 21, 2006
Itching is an intense, distracting irritation or tickling sensation that may be felt all over the skin ' s surface or confined to just one area. The medical term for itching is pruritus.
Source:Gale Encyclopedia of Alternative Medicine
Expert-reviewed information summary about pruritus (itching of the skin) as a complication of cancer or its treatment. Approaches to the management and treatment of pruritus are discussed.
Source:StayWell
Itching is an intense, distracting irritation or tickling sensation that may be felt all over the skin ' s surface or confined to just one area. The medical term for itching is pruritus.
Source:Gale Encyclopedia of Children's Health
Itching, also called pruritus, is an unpleasant sensation of the skin that causes a person to scratch or rub the area to find relief. Itching can be confined to one spot (localized) or over the whole body (generalized).
Source:Gale Encyclopedia of Cancer
Itching is an intense, distracting irritation or tickling sensation that may be felt all over the skin ' s surface, or confined to just one area. The medical term for itching is " pruritus.
Source:Gale Encyclopedia of Medicine
Detailed information on pain management and itching and burn care
Source:StayWell
Eye burning with discharge is burning, itching, or drainage from the eye of any substance other than tears.
Source:ADAM
Date:November 13, 2007
Nausea is the sensation of having an urge to vomit. Vomiting is forcing the contents of the stomach up through the esophagus and out of the mouth.
Source:ADAM
Date:July 25, 2007
 A Recipe to Ease Nausea: Gingerbread With Brown Sugar Meringue"Gingerbread. Ginger cookies.
Source:StayWell
Nausea is the sensation of having a queasy stomach or being about to vomit. Vomiting , or emesis, is the expelling of undigested food through the mouth.
Source:Gale Encyclopedia of Alternative Medicine
Will excess fluid in the ear cause dizziness and nausea? David Vernick, M.D. is assistant clinical professor of otology and laryngology at Harvard Medical School and interim chief of the Division of Otology and Laryngology at Beth Israel Deaconess Medical Center.
Source:StayWell
Definition and classification Pain is a universal human experience. The International Association for the Study of Pain (IASP) defines pain as " an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage.
Source:Gale Encyclopedia of Neurological Disorders
Expert-reviewed information summary about pain as a complication of cancer or its treatment. Approaches to the management and treatment of cancer-associated pain are discussed.
Source:StayWell
Pain, medically termed "nociception," is a response to noxious stimuli that is conveyed to the brain by sensory neurons . The discomfort signals actual or impending injury to the body.
Source:Gale Encyclopedia of Nursing and Allied Health
Communicating About PainResourcesAmerican Pain Foundation888-615-7246www.painfoundation.orgAmerican Chronic Pain Associationwww.theacpa.orgThe National Pain Foundation www.painconnection.orgYou have a right to have pain treated. Untreated pain can...
Source:StayWell
Pain is an unpleasant feeling that is conveyed to the brain by sensory neurons. The discomfort signals actual or potential injury to the body.
Source:Gale Encyclopedia of Medicine
Measuring Your PainA pain scale helps you rate pain intensity. In the scale, 0 means no pain, and 10 is the worst pain possible.
Source:StayWell
Pain is an unpleasant feeling that is conveyed to the brain by sensory neurons. The discomfort signals actual or potential injury to the body.
Source:Gale Encyclopedia of Alternative Medicine
Pain is an unpleasant feeling that is conveyed to the brain by nerves in the body. Pain arises from any number of situations.
Source:Gale Encyclopedia of Children's Health
This comprehensive report describes the many causes of pain, the latest treatments, and the best preventive strategies.
Source:StayWell
I have recurring sores in my mouth, most generally on the sides of my tongue, and the tip of my tongue gets very tender and sore. Do I have a vitamin deficiency? What else could be the cause of this?
Source:StayWell