I wouldnt recommend the ones in bangok personally, they are very cheap and not effective. Im japanese and i once went to a clinic in bangok, the people were rude and i couldnt communicate with them. I just had to point to my scar and they just talked in thai the entire time. It cost me hardly anything, no documents to sign or talk of side effects allergies etc. The treatment was painful, and when i returned to japan the scar came back after a while. I was very upset. It may have done more damage i think. There are some english ones, but i wont be going back to thailand, i didnt find it clean enough.
I went to one in korea, seoul, and it was similar experience except i could communicate with them. They are very cheap, cost me 14 equivalent English currency and the scar remained. People think that eastern asians have perfect skin, not true though is it? some
I would see a specialist in own country. Others may have better stories,