It isn't my story I'm deathly allergic to cats. Follow the link.
The cat I used my silver on is 20 years old. She had bladder infection problems and was pissing everywhere uncontrollably. Also had sores on her back that would not heal. When they took blood tests the blood showed all types of infections.
We just started pouring my Colloidal Silver in her water dish and she was better within days. The vet didn't believe it was the same cat. Almost like a slow kitten. Blood Clean. Sores healed up. The cat prefere's water with silver in it.
If your cat is not drinking she won't last long. I suggest re-hyrading with the use of an IV from your vet (saline type blood solution). Beware, I have seen the anti biotics the vets use cause kidney damage and death to cats several times.