friend who has cystic acne
he started to develop acne around the age of 14 and he's now 15 and half and now has cystic acne. You can't properly see the cysts as they are on the sides of his face and he covers them with his hoodie.
Does anyone know what specifically causes cystic acne?
I should add he smokes and drinks and his diet isn't the best. He uses a clearasil face wash which is probably just for spots not acne.