My Kitty had been sneezing and had a watery eye I took her to the vet and he said she had Upper Respiatory infection, he perscribed amoxicillin drops and he gave her a cefazolin injection. It’s been a week and it seems to be getting better but she still has a stuffed nostrol and she’ll still sneeze and her eye is still watery. Is their some kind of a home remedy or something I can buy to help her breath?