dermatology

1. To prevent sunburns the CDC recommends putting on a broad spectrum sunscreen of SPF 15 or higher -- even if it is a cool or cloudy day -- along with wearing clothing that  covers and protects your skin. 2. When applying sunscreen you need a thick layer, then reapply regularly (about every two hours or after swimming, sweating or rubbing off sunscreen in some way)...

There are several things to keep in mind when choosing which sunscreen to use and specifically which SPF (or Sun Protection Factor) is right for you. The FDA says SPF is related to the amount of solar exposure you get. Therefore the ideal SPF may differ depending on skin tone, the time of day, the amount of sunscreen you put on, and the amount of times you reapply...