It would depend on what's causing your discomfort.
Facet joint and epidural injections do not help every case of back pain. An MRI can be considered to see if there is an element of spinal stenosis or disk herniation. In the case of the latter cause, surgical options can be considered if the pain persists despite the injections.
As for the elevated WBC, I can't comment on where the infection might be without evaluation. With the injections, it's certainly possible that an infection can arise from them.
Otherwise, tests guided by your personal physician should be considered, including, imaging scans as well as blood culture.
The WBCs should not rise solely because of the injections.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin Pho, M.D.
KevinMD.com
Twitter.com/kevinmd
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