[Method]: The old duck is slaughtered and washed; Cleaning the medicinal materials; Put the old duck in a casserole, add herbs, ginger slices, scallion, cooking wine and appropriate amount of water, boil over high fire, simmer for 2 hours, and season with salt and chicken essence.

[Efficacy]: Promoting fluid production to relieve cough, invigorating qi and relieving summer heat. It is best to take it in summer or when you get angry.