Inquiry about non-surgical treatment methods for spinal stenosis

My grandmother has been experiencing severe back pain, so she went to the hospital and was diagnosed with spinal stenosis. She usually walks bent over, and I feel sad that we only just found out the cause. It's late, but I want to provide proper treatment. I was considering surgery, but she is very afraid, so I am looking into non-surgical treatment options. I am curious about how traditional Korean medicine clinics treat back bending caused by spinal stenosis.