Suggest Remedy For Recurring Rashes On Neck

I keep getting a reaccuring rash in my hair on my neck. It comes and goes and I don't know how to treat this. About two months ago I went to the emergency room due an inflammed feeling all over my body especially my arms. I had this feeling before but last time it was so bad and lasted at least four months that I developed a really intense rash and inflammation where it was painful for anyone to touch me. The doctor I saw sadi I had what looked like a skin folical infection or zosters.I switched to Anti-Bacterial soap and it is working great! Also if I pull my hair up my skin/scalp in that area tends to feel better....Please Help! What should I try?