It is always a good idea for people with vitiligo to use sunscreen, whenever they will be spending more than a few minutes in the sun. Besides the need to protect the skin from severe sunburn, sunscreen will keep non-vitiligo affected areas from tanning, thus helping you to avoid the contrast that results between tanned areas, and vitiligo spots. However, there are an increasing number of medical doctors who believe that SOME sun exposure, usually 5 to 15 minutes of sun exposure a few times a week, may be useful in healing vitiligo. If you are interested in this addition to your treatment, you should consult with your dermatologist to see if it is right for you.