I have every sympathy! I attend a rehab pilates group which has helped me with a variety of issues including sciatica. I also have a one to one treatment session at the same facility when necessary which has included being strapped up with long sticky elastic plasters placed vertically which help enormously and enable me to walk. The thing is to keep moving but sciatica is so incredibly painful. I don't take any pills I have to say.
Canard islanders tell Brits to go home.