Peanut Allergy Oral Immunotherapy Desensitization

The purpose of the study is to determine how a type of treatment for peanut allergy known as oral desensitization works in the immune system. Objectives 1. To determine whether premedication with desloratidine and ranitidine results in fewer side effects during desensitization procedure. 2. To assess quality of life in peanut allergic subjects before and after desensitization. 3. To compare serum metabolites in peanut allergic and non peanut allergic subjects.