I get cystic acne on my buttocks. Deep pit scars remain. Is there any medication that can help? And also the skin around my buttocks and thighs are very rough. How can I get smooth skin? What medication can I get at a local chemist?
For cystic acne, retinoid based products work pretty well. Check out the starter regimen and then modify it to suit your condition.
You might need a short course of oral antibiotics but which can be taken only in consultation with a dermatologist.