I was plagued with it for years until a friend of my husband suggested I see his wife, who was an A&E nurse but who had taken up reflexology. Since the usual stuff hadn't worked I had nothing to lose and gave it a go. She checked my medical history and so forth, and began treatment - it was nice but I had my doubts, anyway she warned me that I should need to drink a lot and would be at the loo almost constantly for the next 24 hours or so, (she was right I was!) but I had no more pain or discomfort for a whole year afterwards. So I saw her again and I've never had a twinge of it since!
Been years too. I still take meds for arthritis and gout but the sciatica hasn't bothered me at all.