Sciatica Pain

Is anyone else going through hell with sciatic pain?? I am 21w 2d and my high risk doc approved me to be on a steroid and muscle relaxer for a short time, but the dose is so small it isn't touching the pain, it's been 3 days on the meds. I want to keep the baby safe but I can't imagine the pain I'm in is any better for the baby. Anyone else experiencing this and what are you doing for pain relief? Driving over rail road tracks or a pot hole in the road sends sharp deep pain!