best blackhead treatment

Blackheads…it’s been a problem of my father. I think every month he always visits the derma care to get rid the blackheads but it keeps coming back. If he can’t go there for a month or two, the blackheads are showing up clearly especially around his eyes. I wish my father could find the best blackhead treatment. Sometimes, he asked me prick the blackheads but it looks yucky because they are big once.