2. Wash raw barley, mung beans, lentils and rushes; Wash wax gourd and cut into pieces; Soak tangerine peel in water until soft, and scrape off the pulp.
3. Boil a proper amount of water, add all the ingredients, boil over high fire, reduce the fire for 3 hours, and season with salt.
Efficacy: Pigeons have the effects of nourishing yin, clearing heat, expelling wind and detoxifying; Raw coix seed is beneficial to water infiltration, expelling wind and removing dampness, clearing heat and discharging pus; Mung beans clear away heat and detoxify, relieve summer heat and diuresis; Lentils have the effect of invigorating spleen and drying dampness; Wax gourd has the effects of moistening lung, promoting fluid production, diuresis, detumescence, clearing heat and relieving summer heat, detoxicating and expelling pus; The heart of the lamp is pure and the mind is clear. This decoction has the effects of invigorating spleen and eliminating dampness.