very nasty looking spot on my son's penis

[45nanny]

My son is 13 and has sn he has developed a very nasty looking spot on his penis . Its just below the hair line .Its very swollen and very angry , it has a slightly yellow center, could it be a boil and if it is, is this a very unsual place to get one . What do i do with it ?

Sounds like an infected hair follicle. Keep it clean and dry and see how it is tomorrow. If it is bigger than a pea go to the docs and get antibiotics.

it is bigger than a pea , it wasn't yesterday but it has certainly grown today. Think a vist to the gp , want it cleared up by christmas.

Yep, you should. You don't want to end up having a surgical lancing next week by junior housemen hung over from Christmas drinks do you? Good luck!