Sciatica.. helpppp

What are y'all doing for y'all's sciatic nerve pain??

My doctor said there's nothing he can do to help..

I'm 23 weeks with my second kiddo and it is so bad that I can't stand up sometimes, my leg gives out randomly, even walking hurts now..

It was NOT this bad with my first or after that pregnancy. My obgyn just warned me that it will probably get worse and sleeping on my side with a pillow between my legs helps but....it's not helping

Most times I can't lift my leg to get out of the shower, or get dressed or even stand up. And I cant put a whole lot of weight on tht side or my leg will give out.

It's getting frustrating.. Please help!