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Cura x Cura

Kun Bu昆布

Eckloniae Thallus · Kelp · Kombu · Ecklonia Thallus

Herbs that Transform Phlegm and Stop Coughing 化痰止咳平喘药《名医别录》

Overview

Dried kelp — the flat brown thallus of Ecklonia or Laminaria, rinsed of salt, cut into strips and dried. Salty and cold, it works on hardness: the salty flavour is understood to soften lumps, so the herb's classical home is goitre and scrofula, the visible swellings of the neck. It also drains water downward for oedema, and in practice it is paired so often with Hai Zao 海藻 that the two are prescribed almost as one.

Nature & Flavor

Salty · Cold

Channels

Liver · Kidney

Typical Dosage

6–12 g in decoction
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Actions

2 core actions

  • Transforms phlegm, softens hardness, dissipates nodulesGoitre and thyroid swelling, scrofulous lymph nodes, and other firm phlegm nodules including swelling and pain of the testes.
  • Promotes urination, reduces swellingOedema and phlegm-fluid retention, where the fluid needs to be moved downward and out.

In Formulas

Formulas containing Kun Bu

Indications & Clinical Uses

  • Goitre and other swellings of the neck
    - Scrofula and firm lymph node nodules
    - Swelling and pain of the testes
    - Oedema and phlegm-fluid accumulation

Western Medical Keywords

Searchable condition terms

GoiterThyroid nodulesLymphadenopathyEdema

Contraindications

Cautions

Kelp is a concentrated source of iodine, and iodine cuts both ways in thyroid disease: it helps some goitres and destabilises others. Anyone with a thyroid condition — Hashimoto's, Graves' disease, or a nodule under investigation — should take it only on a practitioner's direction and alongside their medical care, not as a self-chosen supplement. Salty and cold, it is unsuitable in Spleen–Stomach deficiency cold with poor appetite and loose stools, and it is not for long unsupervised courses. Seaweeds also concentrate heavy metals from the water they grow in, so the source of the material matters.

Contraindicated in pregnancy: Take in pregnancy only under practitioner supervision — the iodine load matters for both mother and fetus

For licensed practitioners’ reference only

References

  1. Ming Yi Bie Lu《名医别录》(classical source, public domain).
    2. Bensky, Clavey & Stöger. Chinese Herbal Medicine: Materia Medica, 3rd ed.
    3. 《中华人民共和国药典》.

Professional reference notice. Entries are scholarly references for licensed TCM practitioners and students — not medical advice, and not a recommendation to self-prescribe. Chinese herbal formulas should be used under the guidance of a qualified practitioner. Content is an original editorial compilation by Cura x Cura, cross-checked against the cited references.