Babies with bronchitis, especially older ones, generally exhibit coughing, phlegm, and wheezing. Some may also have a fever, along with symptoms like a runny nose and sneezing. During physical examinations of the lungs, rales caused by phlegm can sometimes be heard in the throat, and in some cases, wheezing and asthmatic sounds can be observed. The lungs may reveal inconsistent moist rales. The primary treatment for these children involves cough suppression, phlegm removal, and anti-infection therapy.