Do not suck sputum for patients more than several times in a row.

Twice. When suctioning sputum for patients, it is not advisable to suc sputum continuously for more than two times, so as not to cause symptoms such as mucosal injury or tracheal spasm. If the patient has unwell symptoms, he can take medication under the guidance of a doctor, such as tiotropium bromide powder aerosol, Zhichuanling aerosol and salmeterol-rosinate aerosol.