I also caught this crap from my barber's clippers years ago, and I didn't treat it properly and it spread and got bad.
I tried to burn them with a lighter and because the skin is dead skin I didn't feel it and it messed my face up like crazy burning my face it looked like Igot caught in a fire. Luckily that all cleared up, that was when I was like 10-14 years old I think, and it came back like 3 years ago again from the samebarber shop too. I used this thing called Blue Star Ointment, and it was gone within like a couple of days, but like that other dude said I continued using itwell after it cleared up just incase. When I got it the second time it wasn't that serious and since I had it before I knew how to better handle it.