What causes skin problems and how to care for them properly?

hello!

It's cold in the winter so I always wear a mask these days, but around my chin skin trouble Without disappearing

It keeps happening and I'm stressed out ㅜㅜㅜ

In the office, the dry heater wind seems to upset the skin balance!

Even though I have mist and use it skin trouble I'm not sure about the effect

I'm getting ready to get another pimple on my chin right now.

It's especially common on the chin skin trouble I'm curious about the cause and what the correct skin care method is haha