The potential side effects and
duration of benefit depend upon which nerves your doctor is planning to block and which agents are going to be injected. You need to ask your doctor what risks are involved, and what is their experience with these procedures. If they are injecting the
sensoryNumbness and tingling nerveNerve biopsy
Nerve conduction velocity only in your thumb, then motor function should not be affected, but your perception of holding a item may be altered. If you have not seen a neurologist, I would recommend it (to exclude any other possibilities. Good luck