I am the foster for a young cat and her 6 babies- they are about 3 weeks old. One of them has been coughing for about a week. I couldnt tell which one it was until today. He is coughing and sounds like he has the croup, like a bark. I called the vet but cannot bring him in until tomorrow. Poor little guy cant get comfortable. Any advice for today and tonight to keep him comfortable? My foster told me to try to bring him into a steamy room from a shower, may help. Can I put some vicks and boil some water to see if that will help him breathe or is vicks dangerous? Brainstorming here... Thanks in advance.