happy Xmas some few months ago little rashes started coming out of my penis head and balls bag. I haven't had sex for a year now I visited a qualified nurse she called it bacteria I was administered bacterial drugs and few injections it cleared up. after a week it returned gradually this time all over my body
seriously itching me, took few drugs I return to normal and once I stop medication it resumes. I don't experience fever or any other problem just itching and whenever I bath with hot water it sweetnes my manhood

few friends said its from my room and I should wash my clothes everyday with hot water
It's now affects my roommate

please your assistance is required
what is the problem and what's the cause
please help a nairalander
share experience if such has happened to you