Wow. I have no idea about the shots. Can you ask more herp vets' opinions? Or find an expert via the internet? Good luck!
Good luck, and maybe post on multiple forums? I remember reading a post about someone's GTP on a different forum that had to have surgery to remove parasite lumps like this. I don't recall what else was done to treat it, or what the worms ended up being.
Check out my gallery! www.schlyne.deviantart.com I am not really active on forums anymore, but I am on facebook.
Please Click the Dragon eggs/hatchlings!