Phlegm usually refers to phlegm excretion. In daily life, you can help small children to excrete phlegm by increasing humidity, patting phlegm, applying heat and other small tricks. If the symptoms are not relieved after using the above tips at home, it is recommended to seek medical treatment in time for faster recovery.1. Increase humidity: Use humidifier indoors to make the air inhaled moist and warm. It can help to discharge phlegm, but also avoid the dry and cold air to stimulate the mucous membrane of the throat and produce secretions and increase the viscosity of phlegm, which is not conducive to discharge. In addition, you can give children appropriate warm water to moisten the throat, which is also conducive to the discharge of phlegm; 2. pat phlegm: when the phlegm is sticky, large in amount and not easy to discharge, parents can make children lie on their sides and then pat their backs with hands in the shape of half bowls, alternately from bottom to top, from outside to inside, regularly, to make the sticky phlegm fall off from the trachea wall and lungs and promote the discharge of phlegm; 3. hot compress: wrap a hot water bag with a towel of moderate temperature and put it on the The hot compress on the back of children can expand the blood vessels in the upper respiratory tract, trachea and lung, accelerate blood circulation and promote the inflammation, thus playing the role of resolving phlegm and relieving cough; 4, other methods: pear and orange peel have the effect of resolving phlegm and relieving cough and moistening the lungs, and children with a lot of phlegm can drink pear water and orange peel water to promote phlegm discharge. If there is still a lot of phlegm, difficult to discharge, you can go to the hospital for nebulization treatment. Adding Ambroxol Hydrochloride to nebulization can not only moisten the airway and dilute the phlegm, but also enhance the ciliary movement of bronchial mucosa and promote the discharge of phlegm. If the sputum is caused by allergy, it is also necessary to get rid of the allergen and use drugs such as cefaclor and azithromycin for anti-inflammatory treatment according to the cause.