This product is a crystal processed and refined from the natural mineral sulfate alum stone. It mainly contains potassium aluminum sulfate (KAl(SO₄)₂‧12H₂O). It is mainly produced in Zhejiang, Anhui, Shandong, Hubei, and other places. It can be used raw or as needed. After calcination, it is called dried alum.

bubble_chart Properties and Meridians

Sour and astrient, cold. Act on lung, liver, spleen and large intestine meridians.

bubble_chart Efficacy

External use: removing toxin, killing worms, relieving itching; internal use: resolving phlegm, stopping bleeding, relieving diarrhea.

bubble_chart Indications

1. Used for eczema, eczema, scabies. Alum can be applied externally to remove toxins and kill worms, absorb dampness and relieve itching. For treating eczema and cutaneous pruritus, it is often combined with Prepared Gypsum, borneol, etc., ground into powder and applied externally. For treating scabies, eczema, and cutaneous pruritus, it is often combined with Sulfur, Realgar, etc., ground into powder and applied externally. For treating infantile thrush, it is combined with Cinnabar, ground into powder and applied externally.
2. Used for chronic diarrhea and prolonged dysentery. This product has an intestinal astringent and antidiarrheal effect. It is often used with Chinese Gall, Chebula Fruit, etc., such as Jingyue QuanshuYuguan Pill.
3. Used for bloody stool, menorrhagia and metrostaxis, and traumatic bleeding. This product has an astringent and hemostatic effect. For treating bloody stool, menorrhagia and metrostaxis, it is often used with Chinese Gall, Sanguisorba, etc. For treating traumatic bleeding, it can be used alone or combined with rosin, ground into powder and applied to the wound, such as Waike ZhengzongRusheng Jindao Powder.
4. Used for syncope, epilepsy, manic and depressive psychosis caused by wind phlegm. This product can dissolve phlegm and saliva. For treating wind phlegm epilepsy, it is often combined with fine tea, ground into powder and taken as a honeyed pill. For treating wind phlegm syncope, it is used with tooth soap, Pineilia, etc., mixed with ginger juice and taken. For treating wind phlegm manic and depressive psychosis, it is often combined with Curcuma Root to form a pill, such as Alum and Curcuma Pill.
5. In addition, this product can also be used for prolapse of rectum, prolapse of uterus, dampness-heat jaundice, and other conditions.

bubble_chart Documentation

1. Ben Jing: "It governs cold and heat, diarrhea and dysentery, leukorrhea, pudendal sores, eye pain, and strengthens bones and teeth."
2. Compendium of Materia Medica: "The uses of alum stone are fourfold: to induce vomiting and expel phlegm and saliva caused by wind-heat, utilizing its sour and bitter properties to promote discharge; to treat various blood disorders, prolapse of the rectum, prolapse of the uterus, sores and ulcers, utilizing its astringent and sour properties to contract; to treat phlegm-fluid retention, diarrhea, uterine bleeding, and wind-eye, utilizing its astringent properties to dry dampness; to treat pharyngitis, yin-type abscesses, poisoning, and bites or stings from snakes and insects, utilizing its detoxifying properties."

bubble_chart Usage and Dosage

For external use, apply an appropriate amount by grinding into powder and applying topically, or dissolve in water for fumigation and washing. For oral use in pills or powders, take 1-3g.

bubble_chart Modern Pharmacology

This product mainly contains potassium aluminum sulfate.

• It has inhibitory effects on various bacteria such as Staphylococcus aureus, Proteus, Pseudomonas aeruginosa, Bacillus anthracis, dysentery bacillus, cold-damage disease and paracold-damage disease bacillus, Candida albicans, Streptococcus, Diplococcus pneumoniae, diphtheria bacillus, and has a significant anti-Trichomonas vaginalis effect.
• In addition, Alum has astringent, anti-inflammatory, antiseptic, and hemostatic effects.
• Alum water has water purification and sterilization effects.