I Hurt My Back At Work. It Hurts From My

I hurt my back at work. It hurts from my lower back all the way down to the back of my knees. The doctor had given me 75 mg of Voltaren, which he gave me for my legs. I see I have some meloxicam, 7.5 mg, both of these are in tablet form. I know it's for arthritis, but would it help my pain in my back to my lower legs?