Leaf of Eucalyptus

Traditional Use

Primary Actions

• Dispels wind and releases the exterior - An Ye is used for common cold, fever, and exterior-type respiratory discomfort when heat and dampness coexist.
• Clears heat, resolves phlegm, and regulates qi - traditional use includes cough, wheezing, chest oppression, and phlegm-heat respiratory patterns.
• Removes toxicity, kills parasites, and relieves itching - external use extends to eczema, scabies, burns, and damp-toxic skin lesions.

Secondary Actions

• This is a comparatively modern imported-materia-medica record rather than a deep classical Han-dynasty staple, so its TCM profile is more regional and practical than formula-canonical.
• The decoction herb should not be confused with concentrated eucalyptus essential oil products, which are much stronger and carry different safety concerns.

Classic Formulas

• An Ye with Pi Pa Ye or Sang Bai Pi - a respiratory-clearing pairing style for cough, wheeze, and phlegm-heat.
• An Ye washes or powders - external practice for eczema, scabies, sores, or minor burns.
• An Ye with Huo Xiang or Pei Lan - damp-turbidity and summer-heat pattern logic when digestive and exterior symptoms overlap.

Classical References

• Modern TCM references describe An Ye as bitter, acrid, and cold, entering the Lung, Spleen, Stomach, and Liver to release the exterior, clear heat, resolve phlegm, and relieve itching.
• Its indications remain broad because eucalyptus entered Chinese practice through regional and practical medicine rather than through one narrow classical formula lineage.
• This monograph keeps the record conservative and leaf-centered rather than importing broader aromatherapy claims.