Aetna Intelihealth
Aetna: Inteli Health: What Is Allergy?
Extremely insightful article that explains what allergy is. Includes information on types of symptoms, how an allergy occurs, and common misconceptions about allergies.
Aetna Intelihealth
Aetna: Inteli Health: Allergy Shots (Immunotherapy)
Briefly explains how allergy shots work and how they are used in treatment.