The nose is a very sensitive organ of the organism. The main causes of painful nose inhalation are: 1, bloody rhinorrhea: usually caused by stones, foreign bodies, tumors, etc. in the nasal cavity, while the secretions can also carry blood. 2, watery rhinorrhea: Mostly seen in the early stage of acute rhinitis as well as the attack of allergic rhinitis, usually than the internal secretions are very thin and transparent as watery. 3, atrophic rhinitis: atrophic rhinitis can easily cause dryness in the nose, so the nose exhalation is painful. 4, reduced nasal secretions: If the nose secretions are reduced, nasal mucosa is easily stuck in the nasal cavity, it is easy to have bleeding phenomenon, therefore, there will be pain when exhaling through the nose. If it is serious that the nasal mucosa is ulcerated or the nasal septum is bent and perforated, this pain will be aggravated. There are several common causes of painful nose inhalation, which can be improved by washing the nasal cavity with water every day, not eating spicy and irritating foods, and not digging the nostrils with your hands. Usually the painful sensation of nose inhalation is caused by the above-mentioned causes, and different treatment plans should be taken according to the severity of the condition and timely treatment.