Smell in the nose, consider for nasal foreign body, fungal sinusitis, atrophic rhinitis, etc., according to the different diseases need to use surgery, medicine and other methods to relieve. 1. Nasal foreign body: for children, it may be due to something into the nasal cavity, a long time, there is an infection caused by odor and yellowish pus nasal discharge. It is necessary to go to the hospital in time, through the endonasal endoscopy to take out the foreign body. 2. Fungal sinusitis: It is mainly a respiratory disease caused by fungal infection of the nasal cavity and sinuses, in which the patient has fever, runny nose and nasal odor. Fungal sinusitis can be treated with glucocorticosteroid drugs, such as budesonide, mometasone furoate, etc., which can effectively reduce the inflammatory response, alleviate the symptoms of fungal infection and mucosal edema; Secondly, antifungal drugs can also be used appropriately for treatment, such as amphotericin B, which can be used for invasive rhinomycosis; for patients with ineffective drug treatment, nasal endoscopy can be used to remove the fungal balls and necrotic tissues, which can promote the recovery of the normal function of the nasal mucosa. 3. Atrophic rhinitis: also known as odorous rhinitis, can lead to the loss of nasal mucosal glands and nasal cilia epithelium, which leads to the loss of nasal warming and humidifying function, and can lead to nasal congestion, nasal bleeding, and nasal odor and other uncomfortable symptoms. Atrophic rhinitis can be treated by rinsing the nasal cavity with saline, which can relieve the dryness of the nasal cavity; for patients with severe symptoms, surgery can be used. So when there is a bad smell in the nose, it is necessary to pay attention to the hospital in a timely manner, after a clear diagnosis and standardized medication and treatment.