Avoid sugar or fruit extracts as licking will cause you worse damage.EV Derma Mix sunscreen into your liquid foundation if it doesn't have any in it. Many already contain SPF protection. You can add sunscreen to any foundation that does not offer enough SPF protection. Just put a few drops of sunscreen in your foundation and mix it in.As with any other ailment, if your skin begins to show drastic and unhealthy changes, you should consult a dermatologist as soon as possible. http://www.supplementstry.com/ev-derma/