Had acne for years and started taking some prescription my dermaologist prescribed me, it getting better. (doxcycline hyclate, clindamycin phosphate topical solution & erythromycin-benzoyl peroxide topical gel). But my face is still left with these red marks. What should I do? I will be going to my dermatologist soon for these marks. Any suggestions. Im only 17 years old right now.