Today, while I was showering, I saw an embarrassingly dark discoloration from my tailbone to my anus;; Is this possible with laser treatment?ㅜㅠ As an artist, I sit for a long time and I don't usually moisturize my skin well..ㅜㅠ Is it impossible to reverse it?ㅜㅠ Anyone who has been in the same situation as me, please help me!!!