Nose can not make smell may be due to colds, sinusitis, nasal polyps, etc., according to the cause of the oral antiviral drugs, anti-anaerobic drugs or surgical treatment. 1. Colds: Colds may be caused by viral infections, resulting in nasal mucosal congestion, nasal ventilation has an impact on the smell, resulting in the smell, the patient can follow the doctor’s instructions to use oral antiviral solution, Shuanghuanglian oral solution, ribavirin and other drugs treatment. 2. Sinusitis: sinusitis patients, such as the presence of anaerobic infections, need to cooperate with anti-anaerobic drugs such as metronidazole, tinidazole and other drugs, drugs are mainly used under the guidance of a doctor. 3. Nasal polyps: the nose can not smell the flavor, may also be due to nasal polyps, nasal septum deviation, simple medication is generally not obvious, the need to take surgical treatment. It is recommended to consult the hospital in a timely manner to check the specific causes of the disease and take targeted treatment after the diagnosis is clear.