Hello, my pain for this past year post fusion has been mostly burning nerve pain across lower butt. I do get some left leg pain and yet the large seroma that needs removing is on the right. Mostly leg weakness or occasional pain down both if standing too long. I live in Massachusetts. I am extremely worried in regards to the arachnoiditis diagnosis and would love to see how people are dealing or treating it since it was rare but with more lumbar procedures comes more diagnoses of the disease.