Now, what to do at home. There are several websites that offer exercises for many different conditions. One that is popular is therabandacademy.com. It is free to sign up. One thing is stay away from the heating pad. Hot Epsom salt baths are OK. Use ice packs on the lower back and sacroiliac joint for 15 minutes four to five times a day. Do not put the ice pack directly on the skin, use a towel. Ice can burn you. The lower back is where the branches of the sciatic nerve originate and then courses past the sacroiliac joint under the piriformis muscle down to the leg. Look up exercises for stretching the piriformis muscle. Sciatic pain can be caused by piriformis syndrome, google it. Walking also helps. It may be painful at first but it loosens the muscle and increases joint mobility. If you are male and carry a wallet in your back pocket don't sit on it. It will irritate the nerve and disrupt the normal position of the sacroiliac joint. Hope this all helps.