I do the following:

Put/pour epsom salts (generously) and a 12 oz bottle of green alcohol into the bath tub. Fill the bath tub with the hottest water that you can comfortably stand. Get into the tub, with a good book and soak/read until the water starts to feel cool. Get out nice and slow and you will find that you feel much better. Do this two times a day for about 3 days (more if you feel the need).

It has always gotten me recovered in about 3 days. I still move carefully for the next month so as not to aggravate the lower back muscles.