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Photo of Japanese Inula

Japanese Inula

金沸草 · Jīn Fèi Cǎo

Loosens chest congestion and quiets stubborn coughs

Properties

WarmingWarming botanicalBitter, Pungent, Salty

What it does

Japanese inula targets stubborn, sticky phlegm sitting in your chest. It's used for wet, productive coughs, asthma, and the suffocating chest-fullness of bronchial congestion. In TCM, it pushes phlegm down and out. The salty taste helps soften and drain thick mucus. It's specifically suited to cold-type phlegm, when the cough produces clear or white sputum, not yellow.

How to take it

Drink

Decoct 3–9g of processed Japanese inula with other lung-supporting herbs for 20 minutes. Always wrap in cheesecloth, since the small hairs can irritate the throat.

Use under practitioner guidance, as part of a formula

Safety

  • Toxic in raw form. Only use processed and properly prepared material
  • Skip during pregnancy
  • Strong taste can irritate the throat. Always combine with milder herbs
  • Talk to your doctor before starting, especially if you take medication

Where it comes from

Japanese inula gets its Chinese name 'Jīn Fèi Cǎo' (golden foaming herb) from its bright golden flowers. The species used in TCM (Inula britannica) grows across northern China, Korea, and Japan. It's been documented in Chinese pharmacopeia for over 1,500 years as a phlegm-resolver for chronic respiratory conditions. The dried herb is processed before use to reduce its toxicity, and it's typically combined with other herbs in classical cough formulas rather than used alone.