Occipital lobe treatment help

Hey friends...I am unfortunately going through some major medical issues and could use some assistance for medical's bills and all the other bills coming at me. I have damage to my Occipital lobe, possibly due to Covid, which causes severe migraines and I need injections into the nerve monthly which are very costly to keep me functioning. Two Neurologists are working with me but so far no answers or cure. The shots are helping but still got to receive them to keep up progress. My insurance has stopped paying saying it is experimental treatment. Thank you for all that has given! Miss a lot of work so it has been a struggle. Never done anything like this and it is humbling. Any help is much appreciated. I love you all!