I am a 20 year old sextually active male. 2 month ago I had unprotected sex. For the past few days I have had a sore penis head with tiny pencil tip red bumps on the head as well. Now i have noticed a rash on the underside of my penis. There are two main rash areas, both are red and have small bumps in them. I have very nervous this could be herpes of another std. Any help would be greatly apprectiated.