hi. i am currently 19 going on 20 and i have a perminant partner and we have unprotected sex. during the month of december that just past twice i had an outbreak of painful ulcers on the head of my penis. the first time i went to my gp he had a swab and tested it and it was negative for herpies simplex type 1 or two and it resolved itself in two weeks. about a week ago something similar came back but this time atleast twice as worse and much larger but the pain and look is the exact same. me and my girlfriend talked about it and we thought it might be yeast infection thats transfered or just a simple infection.