What can a doctor do for blackheads, whiteheads?

Acne surgery. Acne surgery which means the use of a comedone extractor with or without the use of a needle removes both blackheads and whiteheads.

Related Questions

Dear doctors, I have been having whiteheads and blackheads growing all over my face. The whiteheads grow in small lump on my face?

Multiple treatments. Try over the counter topical treatments such as benzoyl peroxide and salicylic acid. If this fails you will need a doctor to prescribe a topical prescription strength treatment such as clindamycin, retin a, (tretinoin) etc with or without an oral antibiotic.