Librela? They seem to work really well for some dogs, not so much for others. But it might be worth trying at least one, to see.has anyone tried the monthly injections
Alongside that WITH YOUR VET'S AGREEMENT you could feed anti inflammatory foods like turmeric, ginger?
Chicken, rice and carrots isn't a complete diet. It might help for a short period but I think it lacks calcium as well as other things.