Allergy (Allergies)

Peanut Allergy Symptoms and Signs

Types of peanut allergy symptoms: About 80%-90% of reactions involve skin manifestations such as

  • a rash, including hives,
  • redness,
  • itching.

Nevertheless, reactions can occur in the absence of a rash, and these reactions may be the most severe.

What is an allergy?

An allergy refers to an exaggerated reaction by the immune system in response to exposure to certain foreign substances. The response is exaggerated because these foreign substances are normally seen by the body as harmless in nonallergic individuals and do not cause a response in them. In allergic individuals, the body recognizes the foreign substance, and the allergic part of the immune system generates a response.

Allergy-producing substances are called "allergens." Examples of allergens include pollens, dust mites, molds, animal proteins, foods, and medications. When an allergic individual comes in contact with an allergen, the immune system mounts a response through the IgE antibody. People who are prone to allergies are said to be allergic or "atopic." Continue Reading

Reviewed on 8/31/2015
Allergy Pictures Slideshow: What Happens in a Nasal Allergy Attack


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