2, the effect of pear boiling water. Can effectively clear away heat and relieve cough, and has the effect of resolving phlegm. For patients who often cough and have phlegm in their throats, they can drink more, which also has the effect of moistening the lungs and has higher nutritional value. They can often drink some in their daily families, which also has a preventive effect. It is recommended to buy Sydney, which will taste better and contain more water. Be sure to buy fresh ones.