Difficult to wear sunscreen with facemask

Though temperatures are increasing, it is difficult to wear any kind of sunscreen with a facemask. Due to sweating the sunscreen applied on the face is getting dissolved in the sweat and trickling all over the face, especially the mouth.
While speaking or opening the mouth, the sweat and sunscreen mixture is entering the mouth.
This sunscreen may contain some chemicals which are toxic.
So citizens are forced not to wear a sunscreen when they leave their home.