hi, thanks for your question. the injections are not usually this painful and if they are I would question as to wheather it was performed correctly. you try not to inject directly into the nerve as this can cause nerve damage
reflex sympethtic dystrophy or chronic regional pain syndrome
is fairly common after surgery for carpal tunnel syndrome
and after nerve injury
. it is caused by dysfunction in the autonomic nervous system and can be helped by massage
, medication and sometimes injections into the nerves further up your arm. it takes many months to completely resolve.