Horrible, tiggypiro. My sciatica was like an electric shock going from buttock to little toe. I was prescribed a very small dose of amitryptyline, which is apparently good for nerve pain. I found a hot water bottle comforting at night, and the stretching exercises to ease off the pressure on the nerve do make a difference eventually. The physio was actually more helpful than the consultant, she explained just what was happening to my vertebrae, did a bit of mainpulating, and gave me the exercises - by the time I finally got the referral to him it was better. He watched me walk into his office without wincing, and said that they find that it often resolves itself given time, so they don't make the appointments too quickly! Moral - get that referral as soon as it strikes, don't wait, you'll have enough waiting once the referral goes in.