One of the major aggravating issues contributing to sciatica is being overweight so if that's the case losing weight will help.
Sciatica is caused by a pinched nerve. I have just recently started suffering with a symptom sorta related to Sciatica and in my research I have read lots of testimonials of doing inversion table therapy not for just sciatica but for back issues in general. This weekend I am going to my local Sports Authority store to see If they have any inversion table in stock. The prices vary form $99 to $500 and up.If I can't find it locally, Amazon has many listed on their site
Type - "inversion table" sciatica - into Google and you'll get lots of info.