Brief Answer:
Direct nerve damage is possible.

Detailed Answer:
Hi,
I have read your question and understand your concerns.

There is a risk with every surgery/procedure that nerves, vessels, muscles, etc. may be damaged.

This damage may result from direct cutting, the heat used for coagulation, compression, traction on the nerve, etc.

What is already done is difficult to be reversed, since you are suffering you should be treated.

Treatment possibilities include antineuralgic drugs (Gabapentin, Pregabalin, Amitryptiline, etc.), nerve blocks by injection of anesthetic drugs around the responsible nerve, nerve ablation, etc.

I'd suggest discuss with a pain specialist about your issues and getting treated.

Hope you found the answer helpful.

Let me know if I can assist you further.

Take care.

---