welcome to just answer
are you present online?
Can you describe the exact procedure that was done?
Was it radio frequency nerve ablation?
It would appear that you are probably having neuritis - inflammation of the nerve that is a known complication of Radio frequency ablation. A nerve in the spine can feel tender and cause pain in a few after the procedure. But, this usually heals within 3-6 weeks by itself.
If the pain is severe as in your case, a trial of medicines like Valproate/ OTC painkillers like Tylenol etc may be recommended
In this situation you need to get back to the clinic/ go to the ER for medication for immediate pain relief.
It is apparent that there is some complication related to the procedure that is causing the symptoms
The hip pain is probably referred pain (pain at a distant area due to local cause)
You are most welcome,
Unfortunately weekends can be tough times to be a patient !
Either the nerve did not get properly burnt,
OR more likely there was local nerve inflammation related to the procedure - neuritis
Please remember to accept the answer by pressing the GREEN accept button, do get back for any clarifications