dear doctor ive been traveling around oz for the last 8 months and about two months ago i noticed white pimp on my penis head on the part where the fore skin is joined to the head of my penis i picked this twice on two different occasions and each time it has bled a little and grew back in the last two days ive started gettin pains in my stomach on the left and right sides the pain feels like ive done alot of sit ups but it wont go away do you know if this is an std and if it is is there a cure