This is what I use to cover my lesions to prevent them from spreading via the aweful biofilm that lesions produce. Leave them on as long as you can, approx. 7 days. If they come off or lesion is not fully healed, replace with another as it may take a few bandages to fully heal the larger lesions. You can purchase these from CVS Drug Stores, Walgreens and Walmart. Name of bandages may differ depending on brand and store.