IT IS USED MAINLY IN THE TREATMENT OF ACNE, IN TOPICAL PREPARATIONS USUALLY CONTAINING 2.5 TO 10%, SOMETIMES WITH OTHER ANTIMICROBIALS. IT HAS BEEN USED SIMILARLY IN THE TREATMENT OF FUNGAL SKIN INFECTIONS, SUCH AS TINEA PEDIS ALTHOUGH OTHER DRUGS ARE USUALLY PREFERRED. A 20% LOTION HAS BEEN APPLIED EVERY 8 TO 12 HOURS IN THE TREATMENT OF DECUBITUS OR STASIS ULCERS. STRENGTHS ARE EXPRESSED AS ANHYDROUS BENZOYL PEROXIDE ALTHOUGH IT IS EMPLOYED IN A HYDROUS FORM FOR SAFETY.