My acne imprve frm tretinoin & clindamycin now iam using hydroquinone 2% for acne marks my face kinda pale using it but no iritation?

Keep working. I'm glad this combination (with retin a, (tretinoin) i see) has given you a good result. Stop using the hydroquinine. You're more likely to make yourself look bad and the brown marks fade in a few months. Nobody cares about them. Keep managing your disease until it self-cures -- mine did at age 50. Enjoy being young, stay fit, focus on learning career skills, and again, nobody cares about your brown marks.