75% alcohol cannot be used to wipe the mucous membrane of the nose, that is, the mucous membrane inside the nasal cavity cannot be wiped with 75% alcohol, because 75% alcohol is very irritating and scrubbing the nasal mucous membrane will cause a very strong irritation reaction in patients, resulting in sneezing, runny nose and other irritating symptoms. If you must clean the nasal mucosa inflammation or secretions, you can try to clean the nasal mucosa with saline, which can play a good role in cleaning the nasal mucosa. If you want to disinfect the nasal mucosa, you can use a less irritating disinfectant like iodophor or Lanso to disinfect the nasal mucosa, and the skin outside the nose can be scrubbed with alcohol.