The mucous membrane or skin of the nasal cavity is traumatized or subjected to other external forces, resulting in localized rupture and bleeding, and the formation of scabs. It is recommended not to pick and dig the nasal cavity, so as not to cause premature shedding of scabs and the formation of fresh bleeding, or the formation of trauma infection. At this time to keep the nasal cavity clean and dry, you can often use warm salt water to wash the nasal cavity, to promote the shedding of nasal crusts. You can also take anti-inflammatory drugs for anti-inflammatory treatment, such as cephalosporins. In addition, you can also take Chinese medicines that activate blood circulation and remove blood stasis, such as Longxuexuan tablets, to promote the healing of the wound. In addition, you can wear a mask when you go out to protect the nasal skin and mucous membranes from dust and other harmful gases.