Depressed girl with acne spots

Patient: Hi doc..i m having severe acne scars on my cheeks,is so mbarassaring is hyprpigmntation.currently i m using cosmelan cream(kojic acid azelaic acid vitamin c).is it safe n will work?how long will it take my marks to fade?plz doc help been one month i am using cosmelan dirctly on marks.plz guide

Symptoms: Uneven skin,hyperpigmentation