How long it takes to recover from acute bronchitis is related to whether the patient is treated promptly and correctly, and cannot be generalized. Patients with acute bronchitis can usually recover in 5-7 days if they are seen in a timely manner and receive the correct anti-infective and antiviral treatment. However, if the patient fails to undergo early formal treatment, the course of the disease is prolonged and even secondary pulmonary infections can make the disease last up to several months. Therefore, patients with acute bronchitis, especially those with low immunity, should seek early detection and timely treatment from the respiratory medicine department of a regular hospital to avoid prolonged illness. In addition, patients with acute bronchitis should pay attention to rest, avoid exertion and cold, take plenty of water and vitamins, keep the room ventilated to avoid irritating gases that can harm the lungs, and quit smoking and drinking.