Influenza A does not turn negative as soon as the fever goes down. For most patients, the fever will turn negative 3-7 days after it goes down, but the time to turn negative varies depending on individual differences.
Influenza A is an acute respiratory infectious disease caused by human infection with influenza A virus, manifested by fever, dizziness, headache, fatigue and so on. Influenza A fever is just do not need to take fever-reducing drugs, but can not be judged to be negative, you can do a nasopharyngeal swab to check whether there is still influenza A virus, if there is still need to continue treatment.
Patients can take oral oseltamivir capsules for anti-influenza virus treatment, note that even if the flu in the middle of taking the medication appeared to improve, can not be discontinued or terminated early, otherwise the disease will rebound.
It is recommended that patients follow the doctor’s instructions, under the doctor’s advice to cooperate with the treatment, not self-diagnosis of the disease, in order to avoid adverse consequences. Drugs should be used under the guidance of a professional physician, and should not be used arbitrarily.