It's AIDS or CPC (Chronic Penis Cancer) from what you've described me, the little dots you see are a bunch of infected skin cells that gathered together, you'll definitely wanna get that checked by some kind of doctor.. they'll recommend you to take Viagra in my opinion, which will significantly increase the size of your penis for about a week per pill, which will ensure the skin gets stretched enough so that the cells explode.. obviously there will be alot of shit to clean up in your pants, but since you're 15, you're most likely used to having piss / post-masturbation semen in the bottom of your pants, so you'll be okay.
If you end up being too shy to receive help from a professionnal, there are different things you can try to ease the pain that will most likely come in a few days / weeks.
1. Chop off your whole dick, that way the disease doesn't spread through the rest of your body (you'll get used to having no dick, though I suggest you get some kind of medical operation after doing this)
2. Take a little knife and manually cut each and every little dot that's on the tip of your penis (don't forget to keep a towel that's been submerged by spider venom, because upon washing your dick with this specific towel subsequently from cutting the dots, the venom will enter your skin and annihilate the whole infection)
3. Jump off a cliff / bridge / tall building (whatever you prefer, really)
Glad I could be of help!
This post was edited by HunteRofAH on Aug 27 2014 08:44pm