Hi, thanks for writing to HCM.
Your description suggests that you have a nerve root
irritation leading to shooting pain down the limbs
injection definitely helps in lessening the pain. But the underlying cause of the nerve root irritation is to be known and treatment should be aimed at the root cause.
So, I suggest you to get an MRI
scan done which diagnoses the possible cause accurately.
Consult an orthopedic surgeon for further workup and management.
Hope this information is helpful. Good day