I had protected sex with my ex girlfriend about 1 year ago and had some redness on my penis under the foreskin. I am not Circumsiced. I used a anti fungal cream and it went away after about a week. I felt no pain and only minimal itching. Now about 3 days ago I had sex with my new girlfriend using a condom and right after the same redness appeared again. It has been 3 days and it is not as red anymore. Can this be an STD ? Because i didnt think it was until it appeared again after over a year.