The dermatologist prescribed first a clindamycin phosphate topical
cream, that did not work. Then he prescribed clidamycin/peroxide
cream and a face
wash, that only dry my skin and did not help at all. A second dermatologist prescribed some safe antibiotics (keflex 500 mg twice daily) and azaleic acid cream. I start taking this and it finally help with my terrible acne. I have acne in my back, face and chest. Some its really deep and leave marks everywhere.