Once we are satisfied that everything is protected we can proceed to spreading a thin layer of 99% Isopropyl alcohol OR Mouthwash (Listerine blue color is a good choice). Alcohol will evaporate very quickly, Listerine (Blue color) is the preferred choice as it will last longer & has a cleaning agent that gets into the affected area better.

With your finger gently spread the substance over the affected area and let it go to work for a minute or two.... in this case I have used the Listerine mouthwash.