Hey guys, I'm a 22-year old male seeking a little advice. So here's the deal. Earlier this year, I had unprotected sex with about two girls on two different occasions. I also eat a lot of rice. At around February, I got sick, and my mom gave me antibiotics. The following day, I noticed that a part of the shaft of my penis (leftover foreskin from circumcision) and a part of my penis head seemed to be a bit red or purple-ish. I didn't mind it, thinking it could have been an insect bite or something. So I simply washed it. The skin became somewhat loose, and became some sort of blister as the skin came off. It was very itchy before the skin came off but there wasn't really any pain. Anyway, a week or so later, it healed.

Two or three months later, I get a cold of some sort. Again, my mom gives me antibiotics. Hours later, I find that infection recurring on the EXACT same spot! I did some research, and thought that it was probably yeast infection. I bought tons of unflavored yogurt, took one everyday after breakfast, and applied some of it to my penis as suggested. Again, after a week, it goes away.

Fast forward to 6 months later, which is now, I eat a lot of oysters during a party. I get diarrhea and I take antibiotics again. Hours later, it happens. Again on the exact same spot. I can't keep this to myself anymore and so, I'm going to tell my brother-doctor about it the next time I see him. I could also use a little help from u guys as to whether this really is yeast infection or something else. What do you guys think?

I also had myself tested for syphilis and it came out negative.