Blackheads are a form of acne. They are caused by the build-up of sebum (secretion of oil glands), which turns black when oxidized. Correct treatment of blackheads is imperative to avoid infection and scarring.
Treatment depends on the extent and the depth of black heads. It involves either blackhead extraction or may need a combination treatment (deeper blackheads), which involves a few sessions of skin peels to remove the damaged outer layer of skin and loosen the blackheads followed by another treatment for the extraction of blackheads.