If the influenza A is mild, it can usually heal on its own in about 1~2 weeks. However, if the patient’s condition is more serious or there are serious complications, the condition cannot heal on its own and requires symptomatic treatment, and the healing time may be prolonged. Influenza A is a contagious respiratory disease caused by the influenza A virus, which is prone to genetic mutation and is the more contagious type of virus in influenza. Symptoms such as cough, runny nose, high fever, and muscle aches can occur after becoming ill. Generally speaking, if the influenza A is mild, like the common cold, it can be cured in about 1~2 weeks. If the patient’s symptoms are prolonged after the illness, it is considered that there may be a combination of complications, such as a combination of viral pneumonia, and in severe cases, it may lead to heart, kidney and other organ failure, in which case the patient will not be able to recover from the illness and may need to be hospitalized, and the time for healing will be prolonged. If the patient suffers from influenza A, he should go to the hospital in time and be treated by the doctor according to the patient’s specific situation, so as not to delay the condition and develop into a serious type.