After receiving head from a girl shortly after I noticed a brown spot on the bottom of my penis head, it stayed like that for like 2 weeks then when I wa smasturbating I noticed it was white and scabby it looked like. So I took a shower and the white and scabby came off. It’s now red and it looks like it got a little bigger. This is the only thing abnormal on my penis. What do y’all guys think this is. It’s a small red spot. Doesn’t itch or hurt and no symptoms.