K has been waking up frequently the last few nights, just seeming uncomfortable. Tonight, when she woke up, she had this harsh, barking cough. When she was crying, every inhale sounded similar (like a bark almost?).

She doesn't seem to have trouble breathing, has no fever, just a runny nose, and is pretty cranky. This sounds like croup to me; is there anything other than a humidifier I can try to make her feel better?