Allergies

Allergies are hypersensitive responses from the immune system to substances that either enter or come into contact with the body. 

Allergies: Should I Take Shots for Insect Sting Allergies?

Guides through decision to take shots for insect sting allergies. Describes different types of allergic reactions. Includes how allergy shots work. Covers benefits and risks. Includes an interactive tool to help you make your decision.

Allergy Shots for Allergic Rhinitis

Explains what allergy-shot immunotherapy is, why it is done, and what allergies it can help. Covers how it is done, how well it works, and what to expect after treatment. Covers risk factors.

Allergy Tests

Provides overview of tests used to find out what a person might be allergic to. Covers skin and blood tests. Explains why and how each test is done. Discusses risks. Explains results and offers points to consider before having tests.

Allergy to Natural Rubber (Latex)

What is latex allergy? Latex is natural rubber, a product made primarily from the rubber tree, Hevea brasiliensis. Some people develop allergic reactions after repeated contact with latex, especially latex gloves. Allergy to latex is an increasing health problem. What are the symptoms? Latex reactions can vary from…

Antihistamines

Oral antihistamines are available without a prescription. Common types such as diphenhydramine (for example, Benadryl), chlorpheniramine (for example, Chlor-Trimeton), and loratadine (for example, Claritin) are used to treat allergy symptoms and itching. Look for generic or store brands, which often cost less than name…