Uh, need halp, anyone knows what this is?

[Losty]

Eh hem... he's 15.

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Roz, probably a cold sore. You've been sick recently, no?

This is what a cold sore looks like:

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If that's what it is, it'll go away in a while, or you can get some topical meds from the drug store.

If that's not what it is, go see a dermatologist.

It looks a tad bit like that actually but mine looks significantly milder and the spots are greyish not yellow. Also mine seems to be already declining and going away after one-two days instead of expanding. And apparently you're supposed to feel cold sores before they appear, which I did not. Anyone knows if it's somethin else?

I don't really fear herpes but the social stigma isn't really fun

Cold sores don't really have the same stigma as genital herpes. It's not an STD. You can get it from drinking out of your Nan's glass of orange juice.