The efficacy of pear water is as follows: 1, can moisten the lungs, phlegm and cough, for the cough caused by lung dryness, coughing phlegm, coughing blood, appropriate drink pear water has a good moisten the lungs, phlegm and cough; 2, can clear heat, reduce fire, and generate fluid, for the late stage of fever injury or warm fever disease caused by yin deficiency and thirst, dry mouth, appropriate drink pear water has a good clear heat, reduce fire, and generate fluid; 3, can release the alcohol poison, the role of sobriety is relatively strong, for people who drink too much caused by headache and dizziness, weakness of the limbs, appropriate drink pear water has a good sobriety, release the role of alcohol poison.