Cover with a bandage immediately and secure the bandage with tape. The bandage will prevent bacteria and debris from getting into the wound.
Change the bandage and repeat the cleaning and sugar application once a day. Rip off the bandage rather than pulling it softly. The hard motion will remove dead tissue and clear the wound.
Be consistent. Sugar healing is a slow process, and it can take several months for serious wounds to heal. However, you should start seeing positive results right away, as the sugar will reduce pain and throbbing in the wound and the surrounding tissues.