Wash the pears and prepare rock sugar. Cut the pear into small pieces with about 50 grams of rock sugar. Turn on the gas, put the pot on the gas, and put water into the pot. Put pears and rock sugar in the pot. Put the lid on and turn the fire on. After boiling, turn to low heat and simmer for about ten minutes. Take it out of the pot and put it in the bowl. It turns out that pear water is so effective and simple to relieve cough, but we may not know whether it is good or not, but after washing the pear, cut it into thin slices. Don't forget to dig out the seeds between the pear rake and the pear after cutting.