My dog has a massive tumor on his lower back that ate partway into one of his vertebrae as well. Docs gave him 2 weeks to a month and he was in such bad condition then, I thought he probably had less time than that. The same story pretty much, everyone said I should put him down but I knew it wasn’t his time yet. Now, it is 2.5 months later, he is off all his meds, he is running around, happy, he jumped on the bed by himself for the first time today, he can walk almost normal again. Contact or plasma is the way to go in my opinion for something as acute as what you are dealing with. Remote is too slow and is best used for long-term/gentle treatment.