Acute bronchitis is an acute inflammation of the bronchi caused by various pathogenic factors and is relatively common in clinical practice. Symptoms mainly include coughing, production of sputum, and some patients may experience chest tightness, shortness of breath, fever, and blood in the sputum.

For initial instances of acute bronchitis, it is important to first ensure rest, increase fluid intake, avoid fatigue, and avoid exposure to cold. Secondly, symptomatic treatment should be considered; cough suppressants can be used for coughs that are dry or produce little sputum, and expectorants should be used when the cough produces sputum that is difficult to expel.

If there is chest tightness and wheezing, asthma medications should be chosen. If fever is present, antipyretic and analgesic medications should be used for symptomatic treatment.

Thirdly, the use of antibiotics is appropriate only when there is evidence of bacterial infection; otherwise, it is best to avoid them. Treatment with antibiotics should be under a doctor's guidance, and self-medication should be avoided. With the above treatments, acute bronchitis can generally be controlled, but a minority of patients with weaker constitutions may develop chronic conditions.