She started the cough less than a week ago, but we didn't like the sound of it and she coughs during the night, so wanted to be sure. We normally wait the 7-10 days because it is usually just another common cold from daycare. My dad and brother both had bronchitis around Christmas, seems several people are getting it this year. She is on amoxicillin, they also wanted a nebulizer but hubby and I prefer to wait on that. Couldn't see trying to hold a 2.5 year old still with the accompanying crying and screaming to do something she wouldn't like. Her lungs didn't sound too bad, so we got it at the right time. We are going to keep her home tomorrow to rest, or attempt to.
Don't be so quick to say no to a nebulizer. My daughter has one for asthma, but seems to have outgrown the need for anything. The nebulizer can be used with plain saline (you can use saline for contact lenses) and does not HAVE to be medication. My daughter was about the same age when we got it. SCREAMED the first time the nurses gave it to her. They quickly get used to it. You can also use one without the mask. Just let them inhale the vapor (hold it right under the nose). I could give my daughter neb treatments while she was sleeping this way.