I had a shot via spinal block 6 days ago, and was advised to put ice packs on my back (L4-L5) 3 -4 times a day, which I have done so..However, I had PT before I had the injection and the PT s did heat on my back. Should the PT had done cool packs instead of heat? Also, my doctor has stopped therapy for a couple of wks. I am doing considerably better, however, occasionally I have a pain in my hip (like something is sticking in me, and I do have occasional calf cramps. Is this still normal, and how long should I expect this discomfort?