Incompetent sense of smell, i.e. olfactory disorder, is commonly found in acute rhinitis, allergic rhinitis, nasal polyps, etc., which need to be treated with medication and surgery for specific diseases. 1. Acute rhinitis: Most of the symptoms are caused by viral infection, such as nasal congestion and runny nose, which leads to poor gas circulation or insensitive sense of smell due to viral infection. Antiviral treatment such as oseltamivir can be taken, combined with ephedrine and other vasoconstriction of the nasal mucosa, the treatment should not exceed 7 days, to relieve the symptoms of nasal congestion. 2. Allergic rhinitis: in the acute attack period, while keeping away from allergens, drugs such as cetirizine can be taken to control allergic symptoms. Combined with hormone nasal spray to reduce nasal mucosal edema reaction, such as budesonide nasal spray, nasal irrigation to clean up nasal secretions. 3. Nasal polyps: Nasal polyps lead to nasal obstruction, nasal congestion and other symptoms. You can go to the hospital and have nasal polyps removed. Improve nasal ventilation and expose the mucosa of the olfactory region. It is recommended that patients go to the hospital to find out the reasons for the lack of sensitivity to smell, so as to treat the cause of the problem, the above drugs need to be used under the guidance of a doctor.