The average number of treatments required to resolve a problem is from 2 – 5 treatments over a period of 2 to 4 weeks. If for example you have not suffered from back pain before, and you suddenly have local pain in the back and you are otherwise fit and well, then 2 or 3 sessions of osteopathy will usually resolve the problem. If you are having pain or numbness down your leg (sciatica) for a few weeks but you are still otherwise healthy then this may well take 4 or 5 sessions over a period of a few weeks. It also depends on how pro-active you are in managing the problem.