14 year ds old acne on forehead

[Designerenvy]

Hi, my 14 year old has bad enough acne on his forehead. His whole forehead is covered with pimples, blackheads and whiteheads.
He's using la Roche Posay facial wash and their duo cream after it. There has been some improvement but it's still bad enough .
Today I've started him on the Simple exfoliator , and hope he'll use that twice a week plus the Simple light moisturiser .
Just wondering if anyone has any other ideas . Or a regeme that has worked for their teenagers.
It doesn't help that he has this long fringe ....so the oil from his hair doesn't help. I get him to wash the hair every other day and i get him to clip it back at night in bed.... which in fairness , he doesn't mind doing.
TIA

Thank again, yes, I think we will pay the gp a visit so. Its awful cos he had such baby soft skin ( and still does on the rest of his face with just the odd blemish ), I'd hate for him to scar , so I'll make an appointment once surgery opens. Thanks again