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I have had the same problem for years (8 plus) and had surgery for this twice and numerous injections. My L5-S1 continues to reherniate - and leg pain has never gone away - it is actually one of my most troublesome pains! I can't imagine after all these years why it just continues to way/wane. Anyway, my point is that even with surgery, PT, and injections, I am a little better, but nothing that was worth the risks that I had to take because I contracted a MRSA staph infection in my spine.
There are many things to consider before having surgery. Weigh them carefully. Good luck. Lots of hugs.