I've never had any problems with my rabbits but my Maltese has a ton of problems. For $50 to $100 you can buy a little Gadget to make unlimited colloidal silver. I spray my dog's eyes with that if she gets goopy. It's the only thing that has helped her bad teeth, I spray it in her mouth. She's a Maltese so they have a lot of dental problems. I had taken her to the vet before and they put her to sleep and cleaned her teeth and must have broken the tooth off when they pulled one and she's had nothing but horrible problems ever since. So not going to do that again! Silver sprayed in her mouth everyday has cleared it up her glands are not swollen and her breath doesn't stink.
I never have to worry that it's going to be unavailable when I need it. No preservatives no unknown ingredients, and silver is what they used to put in babie's eyes when they were born. Colloidal silver is also really good for humans. Hello human.