"After 24 hours remove the bandage. Using hydrogen peroxide (H2O2 - 3%, available in most drug stores) and a Q-Tip, very lightly go over the border of the lesion, removing any organic debris (i.e. puss, serous fluid, etc.) If a full pus formation is not evident or is incomplete, repeat step 2 and leave the new application on for an additional 24 hours before proceeding. Normally one application is sufficient for ..."