【 Method 】 First, clean the fresh Sydney, dry it, and cut the skin into small pieces. Pear stones can be discarded for later use. Remove impurities from Herba Houttuyniae, clean, air-dry, cut into small pieces, put in a casserole, add appropriate amount of water, boil, fry with low fire for 30 minutes, filter with gauze, remove residues, take filtrate, put in a casserole, add raw pear pieces, add appropriate amount of water if necessary, add white sugar, and simmer with low fire until the pear pieces are completely crisp and rotten, and serve.

[How to eat] Take it twice in the morning and evening, eat pears and drink soup.

【 Efficacy 】 Clearing lung and relieving cough, resolving phlegm and clearing heat. This dietotherapy prescription is suitable for lung cancer patients, especially those with excessive phlegm and thick pus.

[Opinion] Houttuynia cordata Thunb. It is pungent and cool, and is good at clearing away heat and toxic materials, diuresis and detumescence. It is a Chinese herbal medicine with remarkable curative effect, especially for clearing lung heat. Clinically, it is often used to treat Huang Zhi's disease with phlegm-heat blocking the lung and persistent phlegm cough. Because it can detoxify and eliminate carbuncle, it is also an important drug for treating lung carbuncle. Modern pharmacological research has proved that Houttuynia cordata Thunb has anti-phage effect through phage test, suggesting that it has anti-cancer activity. Sydney is cool, sweet and slightly sour. It has the effects of promoting fluid production, moistening dryness, clearing away heat and resolving phlegm, and is good at treating fever, body fluid injury, phlegm-heat cough and other diseases. Ancient doctors in China praised: "Those who have cold and heat in their chests can eat more raw pears." The combination of the above two drugs can moisten the lung, cool the heart, eliminate phlegm and lower blood pressure, especially suitable for middle-aged and elderly patients with lung cancer, who have excessive phlegm due to heat. Insisting on taking it has an auxiliary therapeutic effect.