Baby looks too sick
If a baby just looks too sick to a parent, then it's time to go to the hospital er, by ambulance if needed.
If a baby with bronchiolitis
was seen by a doctor and then cleared to be observed at home, the parents can look for any signs of worsening. Examples: baby no longer a nice pink color, baby more tired as hours pass, baby has trouble eating/swallowing, baby breathing >60 times a minute. .