Suggest Cure For Infection On The Penis

i had sex with a model with condom but had oral sex without condom.after coming back to my place i started feeling pain in my penis and urge to urinate again and again. and every week pimples comes and disappear .i am suffering from this problem from last 3 and 1/2 months. first my doctor said it is prostrarites abut after 3 months he said it can be herpes. is this a symptom of getting infected with hiv