Tips for preventing pimples from wearing a mask (FFP2/medical mask)?

I just finished high school and will soon be going to university.

There, wearing a mask is mandatory (FFP2 mask).

My skin has just recovered from wearing a mask for so long and now I'm afraid that I'll get a lot of pimples again from wearing a mask 🙁

I know this sounds silly, but could you give me some tips on how to get rid of the pimples?

For me it always gets very bad.

Especially around the mouth…