My son is 22 years old and was diagnosed with alopecia areata four years ago. I think that he may have other health issues related to the source of his alopecia. Three months age he got shingles. He is always tired at times has facial puffiness and ongoing acid reflux indigestion as well as seasonal allergies. What kind of physician should he see as he has outgrown a pediatrician. I want a complete health and immunological evaluation performed on him. Guidance??