ESI are usually given in a series of 3 injections over a period of 6-8 weeks.
It is not uncommon to have a headache following an ESI in any area of the spine and the usual instructions following the ESI is to lay down for several hours to prevent the "spinal headache" that can result.
On the other hand, if the headache is very severe, it could indicate a "dura leak" where the dura was nicked by the needle and some spinal fluid is leaking out and should be reported to the doctor ASAP.
this is not very common, especially if the ESI is done under floroscopy which is should be done. If the doctor is not using floroscopy to do the ESI, I would not allow the ESI to be done.
It also isn't uncommon to have some injection site pain after the ESI is done and the instructions should tell you to apply ice to the area to relieve any injection site pain.
All of my information provided to me both before and after ESI also state that it is possible that the ESI can make the pain worse, not work at all or only relieve pain for a few days.
The initial pain relief, if it happens is the lidocaine injection which will last about 24 hours, and it takes anywhere from 24-72 hours for the steroid to start to kick in and relieve pain.
If the first injection doesn't relieve pain, then a second one can be given in a slightly different location to see if that works, but if the second one does not work, then usually a third one is not given.
All ESI regardless of the location of the spine, need to be given by a well experienced Pain management doctor who uses floroscopy to give the ESI so that the injection is given in the correct location and is not a game of "hit or miss or pure luck that it is placed in the right location".
Also, a lidocaine injection is given to numb the area and into the area of the injection and then the steroid.
Also quick acting sedation can be used so that you are not awake when the injection is actually done, but awake within 5-10 minutes that it is given.
My own PM doctor always uses sedation as he does not want to have patients moving when he gives injections, it is too risky and can cause the needle to go into the wrong area.
Rich, I am flabbergasted that you where outside gardening after having an ESI done in the morning. I have never heard of any doctor not telling a patient to rest for the remainder of the day, with or without sedation being used, and to lay down for several hours afterwards to help prevent the spinal headache that can occur.
Fran