Currently using clindamyacin 1% topical for acne, how long can i use it for without risking mrsa? and is it safe in pregnancy?

Acne Tx in Pregnancy: Several medications are "safe" to use in pregnancy (pregnancy class b). Such commonly used medications include: erythromycin clindamycin azelaic acid.

Unknown: Mrsa is a bacteria that is resistant to some antibiotics that are in the penicillin family. It is considered a b category safe drug in pregnancy. That means animal studies show no risk or adverse fetal effects. But controlled human studies are not available for first trimester. No evidence of 2nd or 3rd trimester risk shown.