Taboo of Houttuynia cordata

Houttuynia cordata is cold in nature, fishy in taste, and belongs to the lung meridian. In clinical practice, it is mostly suitable for lung meridian excess fire, such as lung carbuncle, phlegm-heat cough. However, it is not suitable for heart meridian and liver and gallbladder meridian damp-heat, such as upset, jaundice, etc. In short, Houttuynia cordata contraindications are not suitable for cough due to deficiency cold, cough due to phlegm dampness, cough due to yin deficiency. Lung heat, cough due to phlegm fire, cough due to lung carbuncle are indications of Houttuynia cordata.