Sounds like your average un-neutered Tom cat. With their I love you, I hate you mood swings. Couple things we need to know first! How old is he, when was he neutered, and do you have other pets.
That depends on how much you want those extra months. It's a gamble either way. No matter what you do he's unlikely to survive the year.
If it was me knowing that this was it, I'd probably just do the palliative care and maybe add on an opioid like codeine and gabapentin for potential break...
So I've always used wheat litter until the kittens are 8 weeks or so then switched to clumping. They like to eat it when their first learning and I'm terrified it with interact with the water in their stomach and clump, causing a blockage.
My question is how realistic is this fear. Does...
I too have been severely maimed by one of my cats. I ended up getting an infection and had to go to a wound care hospital several times a week for months. It to was a case of redirected aggression and with time and patience both cats were able to coexist peacefully.. and I healed.
That being...
This bullying is completely natural behavior as well. If you do get her back then theirs things you can do to bring back the peace. Such as adding more vertical surfaces such as cat trees.
Im sorry to hear that Chief is doing badly. This is a fatal diagnosis, which ever way you go. Their are however pain medication's and treatments that can increase the quality of life for the time he has left. I'd suggest going to a hospice and palliative care vet to discuss your options.
Benadryl tastes horrible to cats. Sometimes they'll froth and foam at the mouth. I had mine compounded into a chicken flavor for my boy that has allergies to grass. It's mildly affective but I take measures to reduce his exposure as well like changing outside after yard work.