I study pharmacology.
I can introduce you to several medicines for removing acne scars for external use, which are generally sold in western big pharmacies. Be sure to go to the biggest local drugstore. Otherwise, it is very likely that you can't buy it.
The price is not expensive either. It's only tens of dollars. It's all for external use.
For old scars and black prints, "Kangruibao" is the first choice. For ordinary new scars, that is, red marks, use "Heplin" or "Hirudoid". Usually a few tubes will be greatly improved.
Kangruibao contains 10% onion extract, 50U heparin sodium per gram, 1% allantoin.
This is a compound heparin ointment. Compared with heparin, onion extract softens scars and allantoin promotes the recovery of sedation, and the improvement effect should be more ideal. In addition to the repair of common scars, it is often used for the treatment of hypertrophic scars, and the effect is ideal.
No side effects. Because it's not hormones. It's heparin. What is heparin? I won't explain it to you. vague