Hello, I Am African American And Have Recently Been Wearing

Hello,

I am African American and have recently been wearing my glasses did to corneal ulcers and when I was able to use my contacts I saw that there is a dark mark where the pad of the glasses sits in my face. It has been a while and it has still not subsided, I'm trying to use mederma on it but I'm not sure the best course of action. What can I use to minimize this discoloration due to my glasses? Will mederma work or kojic acid? Also, is it a bruise or discoloration, I'm not sure how to treat it if I don't know what it is