Possible nerve damage caused by a student administering and injection. Doctor admits fault and referred her to a specialist that she is willing to pay for but the damage is possibly permanant.
You should definitely consult a lawyer who holds Tennessee licensure and who practices in the area of medical malpractice.
I do not hold Tennessee licensure, so what I say should not be taken as legal advice, but simply as information based on general principles of law which is intended to educate.