Recently I have used a self tanner and I think I got an allergic reaction. Is it possible even though I had used it in the past, It was in my cabinet for a while, I just used on my face, I have dermatitis on my body as well. I was wondering if it is how long will it last, I went to an urgent care and she prescribed an oral steroid,. She gave me some lotion also for scabies, just in case. I am a little better, but still feel itchy especially on my forehead, How long will this last, I am using cortison cream for the itch