Allergy

Allergy

An allergy is a hypersensitivity disorder of the immune system. Symptoms include red eyes, itchiness, and runny nose, eczema, hives, or an asthma attack. Allergies can play a major role in conditions such as asthma. In some people, severe allergies to environmental or dietary allergens or to medication may result in life-threatening reactions called anaphylaxis. Food allergies and reactions to the venom of stinging insects such as wasps and bees are more often...

... more on Wikipedia

Allergy is also found on...

List of Common Diseases: Most Common Illnesses What Causes Vomiting? What Causes Skin Eruptions? What Causes Abdominal Pain? What Causes Dyspnea? What Causes Bloating? Diseases Treated By Prednisone Diseases Treated By Antihistamine Diseases Treated By Dexamethasone What Causes Cough? Diseases Treated By Cortisone Diseases Treated By Methylprednisolone