I just bought two pet rats today from a pet store. I noticed one of them was breathing a little quickly while he was sleeping and also coughed a little. I immediately called the vet and scheduled an appointment for both my new babies. The soonest they can get them in is on the 4th. I'm wondering if there's anything I can do for the little guy until his appointment. I'm a first time rat owner, so I'd really appreciate the help! Thanks in advance!