Sieve sinusitis includes acute sieve sinusitis and chronic sieve sinusitis, acute sieve sinusitis and acute sinusitis treatment principles, first, including timely and effective anti-infection treatment. Secondly, the nasal mucosa is contracted with nasal mucosal constrictors to improve nasal drainage, thus facilitating the discharge of purulent secretions inside the sinuses and reducing the condition. The treatment of chronic sinusitis, also known as chronic septal sinusitis, is the same as the treatment of acute sinusitis. If there is no effect through timely and effective anti-infection and improvement of the nasal mucosa, further surgical procedures and other treatments can be considered. Surgical treatment of sinusitis is only possible if conservative medical treatment is not effective for more than two months.