North America · Herb · № 153
Osha
Ligusticum porteri, L. sinense en L. wallichii
The root is traditionally used for sore throats, coughs and early colds. There is virtually no clinical research.
Tradition in Asia
Classical writings from the early centuries BCE and CE

Chinese medicine is one of the oldest continuous healing traditions in the world. In a tomb at Mawangdui, sealed in 168 BCE, archaeologists found silk manuscripts with recipes against fifty-two ailments. They show how old the knowledge already was.
The classical foundation lies in a few great works. The Huangdi Neijing, the “Inner Classic of the Yellow Emperor”, took shape in the last centuries BCE. The Shennong Bencao Jing, the herbal classic of the mythical farmer-emperor Shennong, describes 365 remedies. Around 200 CE Zhang Zhongjing wrote the Shanghan Lun, on febrile diseases, with formulas still in use today.
Over the centuries the knowledge kept growing. In 1578 Li Shizhen completed the Bencao Gangmu, a huge encyclopaedia with almost two thousand remedies. In the twentieth century the tradition was reformed and standardised in China into what the West now calls “traditional Chinese medicine”.
Chinese medicine sees the body as a coherent whole, connected with nature and the seasons. Central are yin and yang, two opposing but complementary forces, such as cold and warm, rest and movement. Health is their balance.
Qi is the life energy that flows through the body, along pathways called meridians. The five phases, wood, fire, earth, metal and water, describe how organs, seasons, tastes and emotions influence one another.
A physician diagnoses not only a disease, but above all a pattern: a picture of what is out of balance in the whole body. To do so he looks at the tongue, feels the pulse and asks many questions. Two people with the same complaint can thus receive very different treatment.
For a long time knowledge was passed on within families or from teacher to pupil. Physicians studied the classics, wrote commentaries and collected their own recipes.
There were also imperial medical institutes, from the Tang dynasty onwards, with examinations and training. Alongside the learned physicians there was broad folk knowledge of herbs, as well as itinerant healers and herb sellers.
Today universities of Chinese medicine in China train physicians in a programme of five years or longer, with Western medicine also on the curriculum.
The Huangdi Neijing and the Bencao Gangmu have been on UNESCO’s Memory of the World register since 2011. The Shennong Bencao Jing and the Shanghan Lun are the other great classics.
A remarkable story belongs to a fourth-century book by the scholar Ge Hong. He described how to soak sweet wormwood in cold water against fever. In the 1970s the Chinese researcher Tu Youyou read that text and so discovered artemisinin, a drug against malaria. In 2015 she received the Nobel Prize for it.
In 2010 UNESCO recognised acupuncture and moxibustion as intangible heritage.
In China traditional medicine works alongside Western medicine, with its own hospitals, pharmacies and training. It is also important in Taiwan, Hong Kong and Singapore, and there are practitioners worldwide.
Since 2019 the WHO’s International Classification of Diseases, ICD-11, has had a separate chapter with diagnoses from the traditional medicine of China, Japan and Korea.
The scientific support differs greatly by use. Some remedies are well researched; for many others evidence is lacking.
Chinese remedies are almost always combined in formulas. Every formula has a principal remedy and helpers. Well-known herbs are ginseng, astragalus, dang gui, liquorice, which brings many formulas into balance, ginger, cinnamon and Chinese dates.
Goji, rehmannia, peony root and the mushroom poria also belong to the basics.
According to the tradition every remedy has its own nature (warm or cold), a taste and a direction in the body. Besides plants, minerals and animal products are also used.
Some Chinese remedies can be harmful. Herbs containing aristolochic acid caused serious kidney damage in Belgium in the 1990s among users of a slimming regimen. Ephedra can strain the heart. Buy only controlled products and consult a doctor.
Do not use remedies from endangered animals, such as the pangolin or the tiger. That trade threatens these species with extinction.
From the kitchen
Alpha from Melbourne, Australia · CC BY-SA 2.0AsiaWatercress and spare rib soup with dried figsA cooling family soup with watercress, figs and apricot kernels.Hot daysCough and lungsWatercress · Apricot · Fig4 people · Preparation 10 min (plus 1 hour soaking), cooking 2 h 30 min
Zheng Zhou · CC BY-SA 4.0AsiaSpare rib soup with lotus root and four herbsSoup with dang shen, yu zhu, sha shen and lily bulb for recovery after cough and colds.Recovery after illness or childbirthCough and lungsCodonopsis (dang shen) · Fragrant Solomon's seal (yu zhu) · Glehnia root (sha shen)4 people · Preparation 15 min, cooking 2 h 30 min
Kembangraps · CC BY-SA 4.0AsiaCongee with Job's tears and brown riceRice porridge for breakfast, savoury or sweet.Joints and musclesDigestionTiredness and strengthJob's tears (coix seed)4 people · Preparation 5 min (plus overnight soaking), cooking 1 hour
2225Group8 · CC BY-SA 3.0AsiaBlack sesame drinkA warm drink in five minutes.Blood and circulationHair and scalpSkin careSesame1 glass · 5 minutesRegistry
North America · Herb · № 153
Ligusticum porteri, L. sinense en L. wallichii
The root is traditionally used for sore throats, coughs and early colds. There is virtually no clinical research.
Europe · Herb · № 97
Taraxacum officinale
The leaf is mildly diuretic; the bitter root was used for the liver and digestion. NCCIH notes there is little human research.
Asia · Herb · № 674
Lithospermum erythrorhizon (en Arnebia euchroma)
Traditionally attributed effects: cools and moves the blood in dark rashes; externally for burns and eczema.
Central America and the Caribbean · Food · № 452
Carica papaya
Traditionally attributed effects: aids digestion, expels worms, stomachic, promotes menstruation; ripe fruit mildly laxative; leaves against amoebic dysentery and fever; seeds against roundworms; promotes milk flow; unripe fruit abortifacient.
Asia · Herb · № 241
Pogostemon cablin
Traditionally attributed effects: inhibits sebum production, draws oil from the skin, fights acne bacteria; against dandruff.
Asia · Herb · № 522
Melia azedarach
Traditionally attributed effects: astringent, tonic, antipyretic, expels worms; fruit laxative; oil insecticidal and antiseptic.
Asia · Herb · № 685
Patrinia scabiosifolia (en P. villosa)
Traditionally attributed effects: detoxifies, drains pus and moves the blood in pain with heat.
Europe · Food · № 259
Daucus carota
Traditionally attributed effects: stimulating, diuretic, tonic, carminative; expels kidney and bladder stones, relieves lower back pain from the kidneys, reduces oedema, restores the bladder, stimulates digestion; seed traditionally as a contraceptive.
Europe · Food · № 244
Pyrus communis
A fibre-rich fruit with sorbitol, which is mildly laxative. In Chinese medicine pear (li) is cooked with rock sugar for a dry cough; no effect is described for other uses.
Asia · Herb · № 656
Perilla frutescens
Traditionally attributed effects: warms in colds from cold, helps digestion and soothes cough with phlegm.
Asia · Food · № 249
Prunus persica
A juicy summer fruit. In Chinese medicine the kernels (tao ren) are used to move the blood; raw they are poisonous because of amygdalin.
Asia · Herb · № 769
Albizia julibrissin
Traditionally attributed effects: calms the mind in anger and low mood and lets the blood flow in pain and swelling.
Asia · Herb · № 787
Aristolochia debilis
Traditionally attributed effects: was used for cough with a lot of phlegm and high blood pressure; banned because of kidney damage.
Asia · Herb · № 786
Aristolochia fangchi
Traditionally attributed effects: was used for hot, painful joints and oedema; banned because of kidney damage.
Oceania · Herb · № 178
Euphorbia hirta
Traditionally used for asthma and bronchitis (the name asthma weed comes from Queensland), for diarrhoea and externally for warts. There is laboratory research but no good clinical evidence.
Asia · Herb · № 275
Pinellia ternata
Traditionally attributed effects: cough-suppressing, expectorant, against vomiting, anticatarrhal.
Asia · Herb · № 132
Paeonia lactiflora en P. suffruticosa
The peeled root (bai shao, white peony) is used in Chinese medicine for cramps, period pain and muscle pain. There are studies of combination formulas but few of peony alone.
Asia · Herb · № 704
Juncus effusus
Traditionally attributed effects: cools the heart and promotes urination in cystitis and restlessness.
Central America and the Caribbean · Food · № 263
Cucurbita moschata
Traditionally attributed effects: heart-warming and nourishing for body, mind and soul; good for skin and hair.
Asia · Mushroom · № 146
Wolfiporia cocos
One of the most widely used remedies in Chinese medicine, for fluid retention, poor digestion and restless sleep. Clinical research on fu ling alone is scarce.
Asia · Food · № 689
Portulaca oleracea
Traditionally attributed effects: cools the blood in dysentery and painful urination; externally for ulcers and insect bites.
Asia · Herb · № 748
Pseudostellaria heterophylla
Traditionally attributed effects: a mild qi tonic that also replenishes body fluids.
Asia · Mineral · № 784
Pumex
Traditionally attributed effects: cools hot phlegm in the lungs, softens lumps and promotes urination.
Asia · Mineral · № 791
Pyritum (ijzersulfide)
Traditionally attributed effects: resolves blood stagnation and helps fractures and ligaments recover.
Asia · Food · № 545
Raphanus sativus
Traditionally attributed effects: seeds and leaves diuretic, laxative, dissolve stones; juice against scurvy; for painful and difficult urination, stones, urinary diseases, haemorrhoids, stomach ache; syrup for hoarseness, whooping cough and chest complaints.
Asia · Herb · № 775
Combretum indicum (syn. Quisqualis indica)
Traditionally attributed effects: was used against roundworms and for poor digestion in children.
Asia · Mineral · № 799
Realgar (arseensulfide)
Traditionally attributed effects: was used externally against parasites, itching and sores; contains arsenic.
Asia · Herb · № 673
Rehmannia glutinosa
Traditionally attributed effects: raw it cools the blood and nourishes yin; prepared (steamed with wine) it nourishes the blood and the kidney yin.
Asia · Mushroom · № 690
Calvatia gigantea (en Lasiosphaera fenzlii)
Traditionally attributed effects: cools lung fire in sore throat and hoarseness; the spore powder stops bleeding externally.
Asia · Herb · № 696
Rhaponticum uniflorum
Traditionally attributed effects: reduces hot swellings, especially in the breast, and promotes milk flow.
Asia · Herb · № 669
Phragmites australis (syn. P. communis)
Traditionally attributed effects: cools heat and moistens in thirst, cough with yellow phlegm, vomiting from stomach heat and painful urination.
Asia · Food · № 267
Oryza sativa
Traditionally attributed effects: easily digestible, the basis of healing food; good for skin and hair.
Asia · Herb · № 442
Bombax ceiba
Traditionally attributed effects: gum astringent and stops bleeding; root and bark soothing, diuretic, aphrodisiac; for abnormal uterine bleeding, diarrhoea, dysentery, coughing up blood, heavy menstruation, bladder and kidney stones, boils, itching.
Europe · Herb · № 89
Rosa spp.
Rose hips are rich in vitamin C; a hip powder has been studied for osteoarthritis with modest results. Rose water and oil are used in skin care and as fragrance.
Africa · Herb · № 399
Achyranthes aspera
Traditionally attributed effects: astringent, diuretic, cleansing, antipyretic, laxative; for oedema from the kidneys, bronchial complaints, leprosy, stomach ache, haemorrhoids, boils, incipient diarrhoea; abortifacient in high doses.
Asia · Herb · № 321
Carthamus tinctorius
Traditionally attributed effects: laxative, diuretic, anti-inflammatory.