Influenza A is clinically known as Influenza A. Weakly positive Influenza A usually takes about 3 to 7 days to turn negative and return to normal. It can be judged according to the individual’s physical condition, because there are individual differences. 1. Clinical self-healing: Influenza A has a tendency to heal on its own. For patients with mild illness, if they do not use antiviral drugs (such as oseltamivir, etc.), a weakly positive influenza A will take about 7 days to return to normal and achieve clinical self-healing. Influenza A, although weakly positive, does not mean that the disease is mild. 2. Treatment with medication: If you are weakly positive for influenza A, you can use antiviral medication such as oseltamivir under the guidance of your doctor, which can shorten the treatment time of the disease, and the disease may turn negative in 3~5 days after using the medication. If A-flu is weakly positive, it is recommended to isolate, go to the hospital for examination in a timely manner, under the guidance of the doctor to assess and treat the disease, usually do a good job of preventive measures, to the principle of light diet to avoid aggravation of the disease.