Can tretinoin cream work on red acne bumps that are just starting to form?

Takes time: These topical retinoic acid creams work best long-term by causing de-differentiation of the sebaceous glands that allow acne to arise. Try using this, with or without adding topical Clindamycin if your physician thinks this is okay, for several weeks and this should help prevent recurrence.

Yes: These products can help acne, but they are not without side-effects and complications. These treatments should for directed by a qualified doctor.