i am 17 and for several years now i have been getting a small sore on the right side of my penis just below the "head". i'm pretty sure it happens because i usually masturbate "dry" without any lubrication or anything (but i have tried lubrication and i like dry better). anyways, so this little sore always appears every once in a while (like once every few months more or less) and so i don't masturbate for a few days and it heals. is there any lotion that i can put on it when i do get the sore?also i always have a whiteish, flakey skin right around this area (i don't think it has ever gone away) and i only see it when i am fully erect. i'm pretty sure it's not dry cum...is there anything i can do about this?thanks