Pepper allergy

Question:

7/27/2017
I have a question regarding a pepper allergy vs intolerance in a young child. She first reacted at 12 months old to "rajas" or poblano pepper tacos with hives on her back, buttocks and upper thighs, angioedema of the hands and cough. All other congested foods were negative on skin testing and ingested since without reaction. Second reaction was similar foods with jalapeno pepper which was similar, subsequent reactions to bell pepper, guajillo and salad dressings with "spices" listed and/or paprika occurred where she started to grab at her tongue and have more eczematous reactions through the age of 4. She tolerates black pepper without a problem and also has ingested serrano pepper with no reactions in a green salsa. Each reaction responded immediately to Benadryl, once requiring oral steroids most recently which seemed more severe than the past rashes/reactions covering entire back/buttocks/legs/chest/abdomen, never requiring EpiPen administration. Paprika extract on skin testing was 1+, fresh peppers were not tested for fear of irritant reaction. I have been told by a colleague this could be because of TRP channels. My questions are: is this IgE mediated or through TRP channels or some other mechanism? What is the likelihood she will outgrow it? Should EpiPen be consistently given in cases like this?