I have dark discoloration and marks left around my mouth and chin. How about a moisturizing and whitening treatment? lol

Whenever my period approaches, I inevitably get breakouts around my mouth and chin that go down, leaving behind dark, pigmented marks just like in my photo ㅠㅠ. Every time I apply makeup, the area around my mouth looks dull and messy, like I have a beard, so I'm struggling to cover them up with tone-up cream haha. With these acne marks remaining, should I go to a dermatologist for a hydration and brightening treatment or a vitamin penetration treatment to completely erase them? Or would it be better to get regenerative nutritional injections to strengthen my skin barrier itself? I'm so confused ㅠㅠ. I want to stop wearing patches and have a clear, clean jawline. For those of you with severe acne marks around your mouth like me, please share lots of tips on what treatments you got to even out your skin tone ㅠㅠ.