Sciatica is caused by irritation or compression over sciatic nerve,it is very painful condition and its pain is along the course of sciatic nerve .i.e. from the back (hip)to foot.Its main symptoms are pain and numbness.It is cause due to buldging of the vertebral disc L5-L6 which leads to the compression of the nerve.There is very effective treatment in Homoepathic System.Some of the effective medicines for Sciatica are :

Colocynth,Hypericum.Rhustox,Arnica,Bryonia and kali carb.