Feline Infectious Peritonitis (FIP) Remedies

My female cat was diagnosed with dry form FIP back in early Dec. 2014. She is still with us. She declined despite all the meds from the vet. I still give the Interferon. At about 5 months she had gone from 12 lbs down to 7. You could see her spine. I looked high and low for something to give her. I had decided to try Iron and vitamin D3. She has gone back up to just over 9 1/2 lbs and even when you pet her you do not feel her spine. She acts like nothing is wrong with her at all and I will continue with this. I have opted to give her gluten free canned food for breakfast and for dinner her normal canned friskies. I also keep dry gluten free mixed with her Kit and Kaboodle that she has always loved.