Help Autumn's Cats Recover from Illness

Hey I’m Autumn and this is my little man. He’s a two year old orange tabby named Stranger and he’s been my emotional support animal. Just a week ago him and my other cat had gotten an upper respiratory infection and have been suffering immensely. We have both their emergency vet visits done and it costs an arm and a leg and that’s without treatment. I’m asking if anyone would help me and my little family through this hard time. Anything is appreciated ❤️