How do you all take care of your skin during the changing seasons? Please recommend some treatments!

My skin has suddenly become sensitive lately, perhaps due to the change of seasons. In this case, would it be better to visit a dermatologist for treatment?

Or is it better to manage it at home focusing on soothing?

I don't have money, so I want to do it at home as much as possible ㅠㅠ

How do you all manage this?