Tissue poking the nostrils and sneezing is not good for the nasal cavity and is not advocated. The tissue directly stimulates the nostrils causing damage to the nasal mucosa, such as congestion, edema and even erosion of the nasal mucosa, resulting in nasal congestion, nasal vestibulitis and nasal bleeding, etc. After stimulation, due to repeated sneezing, it also causes congestion and edema of the nasal mucosa, which can cause mucosal damage, resulting in nasal congestion, nasal bleeding and a small amount of discharge. Usually, when clearing nasal secretions and allergens, the above-mentioned sneezing should not be used. At home, physiological saline or physiological seawater can be used to spray the nose or rinse the nasal cavity to rinse off the bacteria, allergens and secretions in the nose.