I am sorry to hear about your cat, Fuxy.
I don't have any experience with this but I would like to recommend you start a thread in the Pet Health forum, you may get a better response.
Please don't appologize for your English, it is very good, wish I could say I could speak a second language as well as you
Cat maid to:
Jasper, male Ragdoll ?? (approx 10 yrs)
Rose semi feral, a cpietra rescue, female tabby (approx 7 yrs)
Sweet Pea RIP (2004?-2014)
Puddles RIP (1996-2014)
Snowball RIP (1991-2005)
In a cat's eye, all things belong to cats.-English Proverb
“While we are free to choose our actions, we are not free to choose the consequences of our actions.” Stephen R. Covey