Report says: left sided neural foraminal stenosis with nerve root impingement at the l5-s1 level is there anything i can do to relieve pain until tx.

A few steps: Even at age 82, you could try some stretching exercises, and even some McKenzie back exercises. Hot soaking in hot tub or bath may alleviate some of the discomfort. Some meds will interact with your warfarin. But you might be able to gain relief from simple OTC meds such as Aleve, (naproxen) ibuprofen, and maybe you could be candidate for epidural steroid injection.