question: Hi I have a red itchy rash on my chest/ neck area which is now working its way up to my face. It is a pimply like rash with white heads. I have had it on and off for about 3 weeks but it has gone away on its own until now when I have had it for about a week. I have recently been on Doxycycline and stopped taking them about a week ago. Not sure if this is related or not? Thanks