What should I do about my back pain?

This is a silly question but idk what to do, i threw my back out today, im taking it easy but it hurts so bad, my back spasms, and it hurts to move my left leg, and i have to sometimes drag it, i have muscle relaxers but they put me to sleep so ill take one at bed time ive also taken a pain killer, is this an emergency room thing or just wait it out