2. Wash tremella with clear water and soak it in clear water for about 2 hours.

3. Change the water once or twice during soaking until the tremella is white and swollen.

4. Cut the soaked tremella root, tear it into small pieces, and put it into the pot together with the washed red dates. Bring the fire to a boil, and turn it down 1 hour.

5. Add the washed medlar and continue to cook for 20 minutes.

6. Add rock sugar and stir before cooking.

7, efficacy: smooth taste, sweet and mellow. It can nourish yin, relieve cough, moisten lung, eliminate phlegm, moisten intestine and stimulate appetite. It has a good health care function for middle-aged and elderly people and patients with hypertension, arteriosclerosis and tuberculosis.

8, because the general fire-clearing drugs are bitter, so you may wish to stew some rock sugar tremella soup, which is very helpful for fire, don't worry about bitterness, don't like to eat.