Hello.
you can chat with me via app to give you correct answer.
however your dr has given you Pregabalin from Sandoz and its usually for post herpes zoster pain or from nerve pain due to diabitis.
Any doctor needs to understand the cause of nerve pain ie neuritic pain or neuralgia, to give correct advice.
Next Steps
I think you can chat with me via app or any other Indian dr you wish to chat. The cost is fraction of what you pay in Thialand.