DERIVA CMS GEL 20GM is a topical gel used for the treatment of acne. It contains a combination of Clindamycin and Adapalene, which work together to reduce inflammation, unclog pores, and prevent new acne breakouts. This gel is applied directly to the affected areas of the skin and should be used as directed by a healthcare professional. It is important to follow the instructions carefully and avoid excessive use to prevent skin irritation. DERIVA CMS GEL 20GM is a prescription medication and should only be used under the supervision of a doctor.