Heartleaf Houttuynia Herb is the dried aerial part of Houttuynia cordata Thunb. (Fam. Saururaceae).

Action: To remove toxic heat, to promote the drainange of pus, and to relieve dysuria.

Indications: Lung abscess with purulent expectoration; heat in the lung with cough and dyspnea; acute dysentery; acute urinary infection; carbuncles and sores.

Usage: To be boiled briefly; of the fresh herb to be decocted or pounded to make juice for oral administration. For external use, appropriate quantity to be pounded into paste for topical application or made into hot decoction for fuming and washing of the lesion.