My potty dark and rough and there is small acne under the skin what's the treatment? can i use retin a (tretinoin) cream

Dermatologist: please don't self medicate with retin A (tretinoin) cream, especially that you are young lady, please see a dermatologist to help diagnose you right and direct you well with treatment, retin A (tretinoin) shouldn't be taken if you are pregnant or contemplating pregnancy, moreover it should prescribed and monitored by a physician even for men, take care