Vertical line down penis head Red

Hello, about 4 months ago i started masterbating frequently like 2 times a day maybe even 3 on somedays and i started to get a lil red mark where the glands are (the Pee hole idk) and then i guess it got bigger over time but the only thing ive done with a girl at that time was nothing i mean i put someones underwear down my pants one time jk around but it never got worse after that its just been the same color and ive used every cream thing Gold bond, some thing for infections, baby rash stuff, even zit stuff like clearasel but nothing works

i mean it seems to work but i mean after i masterbate it becomes the same and i thought this has to stop so for about a month ive been masterbating once a week still didnt do nothing like theres cracks on it its only about a half inch long but it dosent hurt or itch i mean when i pinch it it hurts a lil but i mean that shouldnt mean anything i mean my mom is an LPN nurse and i showed her and she said it was nothing but i bother her everyday about it. im just parranoyed it could be like HPV or something i mean i got a hand job about 2 months afterwards cuz it was still there and then 2 months later i got a blow job but its still there it gets more red after i masterbate it would seem to be blood. im 15 and this is whats wrong w/ me

PLZZZZZZZZZZZZZZZZZZ help me..........im so worried its never gonna go away my mom thinks we shouldnt go to a docter there is NO bumbs or anything i just dont understand.