Hey I'm 17 and I have a pimple light reddish on the middle of my penis it came on Tuesday/ Wednesday when I woke up in the morning I went to go use the bathroom and that's when I discover it I tried to pop it white and clear plus came out yes I'm sexually active and I only had unprotected sex with one girl and I've been knowing her most of my life I don't know if it could've came from her or a pair of underwear I haven't wore I'm a long time I've been keeping the area clean I use a warm time and rub alcohol on it it have went down kinda but it's still there I was just wondering what's the next step I do before going to the doctor?