I have a burning sensation around back of neck, forehead, side of face, and arms . I have been to the ER and they tell me I might have a food allergy. I been to my regular doctor and said he did not know what it was and he gave me a shot of cortisone . ER doctor gave me Benadryl, predisone and Pepcid. then sent me home with a six day dose of predisone. ER doctor said I may need to see an allergist.