[Urb4n]

I know how you feel youpidou, two weeks ago my 11 year old cat got his leg broken in 3 places by a dog. He's got a splint on and is on antibiotics, and if for any reason the splint does not help him get his leg back into a condition where he can walk on it again or put weight on it, he'll lose the leg. And if it gets infected at the wound then we'll have to put him down, I sincerely hope that your cat just has allergies. Losing a pet is never any fun.