Give a summary of the guidelines for using sunscreen to prevent over exposure

Sunscreen should be used before exposing oneself to the sun during summer or during times when the sun is especially strong. Another thing to keep in mind is to always apply sunscreen to areas which will later on be continuously exposed to sun. It is also important to apply sunscreen multiple times during the same day.

Telling them to either contract or relax

Dialect is probably part of the answer