Do not use products with tretinoin (or Retin-A) on the area.
Treatment for mild noninflammatory acne consists of reducing the formation of new comedones with medications including topical tretinoin, benzoyl peroxide, adapalene, or salicylic acid.
Tretinoin is especially effective because it increases turnover and replacement of skin cells.
One effective treatment is topical tretinoin, used along with a topical or oral antibiotic.
For example, lotions, soaps, gels, and creams containing substances called benzoyl peroxide or tretinoin may be used to clear up mild to moderately severe acne.