Suggest Medication For Pain In The Calf & Numbness In The Foot

Hi, may I answer your health queries right now ? Please type your query here...Hi, don't know if you can help, I hurt my back at Christmas, and had severe back pain for 6 weeks along with pain down my left leg, and although back got better my leg remained numb at my calf from behind my knee to half way down calf. I've had back pain twice since then but only a few days each time. But numbness in left leg throughout, but now there is also pain in my calf where the numbness is and the heel of my foot has gone numb also. What could this be?