The first thing you need to know is why you have it. If it's from the periformis, you try to treat that. If it's from the lower back, you try to treat that. It it's from the hips, you treat that. Without knowing why or whether it's something you're doing (I got it from riding a bike, believe it or not, and got rid of it by not riding a bike anymore) nobody can treat it successfully. You might find drugs that minimize the pain, but you can get rid of sciatica in physical therapy if you know where it's coming from quite often. In the meantime, tried taking baths in Epsom salts? I recommend you see an orthopedic surgeon for a diagnosis and go from there.