Viral hyposmia is generally due to upper respiratory tract infection, acute rhinitis and other conditions, patients can take medication for recovery. 1. Upper respiratory tract infection: the main cause is bacterial, viral and other pathogens infection, caused by viral infection of the upper respiratory tract, will lead to the patient to appear nasal mucosa congestion, which leads to the patient’s sense of smell hyposmia. At this time, patients can follow the doctor’s instructions to use hydroxymetazoline, pseudoephedrine hydrochloride and other decongestants for treatment, at the same time, if the patient’s disease is longer, with ribavirin and other antiviral drugs to shorten the duration of the disease. 2. Acute rhinitis: mainly due to rhinovirus, adenovirus and other viral infections, often leading to nasal dryness, itching, sneezing, loss of smell and other symptoms. Patients can take ribavirin, amantadine and other antiviral drugs as prescribed by the doctor for treatment, and at the same time with glucocorticoid drugs such as budesonide nasal spray, as well as vasoconstrictor drops such as 1% ephedrine, to improve nasal ventilation and restore the sense of smell. To summarize, it is easier to recover from the loss of sense of smell caused by viral infection, and it is recommended that the patient should consult a doctor in time for examination to clarify the specific cause of the disease and then take active treatment.