Surgical procedures that use Nasal Wool for tamponade usually do not require the removal of the Nasal Wool after the procedure, and it can be self-absorbed. NasiFoam, also known as biodegradable and absorbable ear and nose hemostatic dressings, is a new material for nasal tamponade. Nasal tamponade is commonly used to control postoperative bleeding after sinus surgery, deviated septum correction and turbinectomy. Commonly used fillers such as petroleum jelly gauze and expanding sponges need to be removed after surgery, which can be painful. Biodegradable filling materials such as Nasi sponges are self-absorbable and usually do not need to be removed after surgery. They have the advantages of generating a more uniform pressure and avoiding the pain of forcible removal of the filling and the secondary damage and bleeding of the nasal mucosa. However, it should be noted that Nasi cotton has a unique hydrophilicity, and when it meets water, it can form a food cereal-like substance. Although it does not need to be withdrawn, if there is an abnormal obstruction of the nasal cavity for a long period of time, it is recommended to carry out nasal rinsing and suctioning of secretions.