Have you tried any of the following? Ayurveda. Traditional Chinese medicine. Naturopathy. Integrative medicine. These four branches of health sure helped me. Some medical doctors (M.D.s) practice integrative medicine. You can find one on IFM.org Good luck. I don't know much about sciatica, but acupuncture might really help with both pain and muscle spasms.
Father I pray please heal Mairs from sciatica and muscle issues. I pray restore them to health and free them from pain. IJCNIP Amen.
Mairs, I am praying for you