The dog probably needed to be put down. I’ve had many dogs over a lifetime and never had the problems described. But then I’m not the type to give chemo to a sick dog.
A couple of years ago I nursed my 20 week old pup through parvo at home. I didn’t have $1000 to pay a vet and they wouldn’t even advise me. All I wanted was to purchase some bags of IV electrolyte solution which in my state doesn’t sell through feed supply stores. They wouldn’t even do that for me. So, I had to get creative. I made my own electrolyte solution, bought an IV hose from the Feed store along with needles and proceeded to hydrate my dog. She threw up not less than 30 times the first 12 hours. I lived on the second floor so I had to carry this 50 lb dog wu and down the stairs several times a day because of the bloody diarrhea she had. She was so sick that first week that she couldn’t even hold down as little as a teaspoon of water without vomiting.
Finally at the end of a full week, she stopped vomiting and the diarrhea slowed down. I was able to find a caring vet who came out to my house .. after an intense week long search..who prescribed antibiotics for secondary infection, and pain relievers.
It didn’t end there. I had to nurse this dog back to health for weeks, months. I had to make food she could tolerate and regain her strength and health. It took her a year to fully heal and today at 4 1/2 years old, she still has a sensitive bowel.
She had a 90% chance of dying regardless of whether or not I paid for vet care, and they could do no more than what I did round the clock. It was hellish in terms of exhaustion for me, but even more so for her.
I’ve taken care of long term illness of family, and it does take a toll on people. Especially a novice. Once you learn what your own needs are, you can plan for those crucial needs to be met. One of those needs is frequent breaks...before exhaustion sets in. You must make time for your own humanity, life and interests if you are to survive the long haul. Making yourself into a martyr helps nobody. Tell your health Care providers of your needs too as you care for your sick one, and they will assist. They are resourceful.