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Pain in lower back can be caused due to possible causes like Muscle strain,Arthritic degenerative changes in lumbosacral spine,Renal calculi.
You should do gentle massage with muscle relaxant ointment and apply warm compresses on affected area with a heating pad.
Contine Ibuprofen 200 mg every 4-6 hourly to relieve pain.
Take proper rest.
Avoid any strenuous physical activity for a while.
Hydrate yourself with plenty of fluids.
If your symptoms get worse over the time or persist then consult your doctor for further evaluation and management.
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