Calamine, also known as calamine lotion, is a medication used to treat mild itchiness. This includes from sunburn, insect bites, poison ivy, poison oak, or other mild skin conditions. It may also help dry out skin irritation. It is applied on the skin as a cream or lotion.Side effects may include skin irritation. It is considered to be safe in pregnancy. Calamine is a combination of zinc oxide and 0.5% ferric oxide (Fe2O3). The lotion is produced with additional ingredients such as phenol and calcium hydroxide.The use of calamine lotion dates back as far as 1500 BC. It is on the World Health Organization’s List of Essential Medicines. Calamine is available over-the-counter as a generic medication.

== Medical uses ==
Calamine is used to treat itchiness. This includes sunburn, insect bite, or other mild skin conditions.

We will share with you a single Chinese medicine-calamine. Calamine is a more commonly used traditional Chinese medicine. Originally published in “Compendium of Materia Medica”, it was included in the stone class of Jinshibu.

The alias of calamine: calamine.
The source of calamine: it is the ore of smithsonite, a secondary mineral formed by weathering. Commonly found in the oxidation zone of lead-zinc ore.
The origin of calamine: It is mainly produced in the Liuzhou area of ​​Guangxi.
Character identification of calamine: It is irregular block with different sizes. The surface is white and reddish, with some micro-strip patterns, depressions and small holes, showing powdery nature. The body is light, loose and fragile. The section is light brown or off-white, granular, and has small pores, some form cloud-like layered patterns, and some are larger, hard and heavy (raw ganshi). Slightly hygroscopic, no gas, slightly astringent taste.
The one that is large, white or light red, and light in weight is better.
The main components of calamine: containing zinc carbonate, mixed with a small amount of iron, calcium, magnesium, etc.
The pharmacological effects of calamine: improve eyesight and remove pansies, dry dampness, promote muscle growth, stop bleeding, and relieve itching.
The preparation of calamine: After calcining, the water is fly, and very fine powder is taken; the lotion can be used raw.
The nature and flavor of calamine: sweet and warm.
The return meridian of calamine: Entering the stomach meridian.
The functions of calamine: improving eyesight, relieving haze, tightening astringent muscles, stopping bleeding, reducing swelling and sterilizing.
Indications of calamine: red eyes, irritation of eyes and face, ulcers, skin eczema, eczema and itching.
Clinical application of calamine: This product is for external use only, not for internal use. Used for ophthalmic conjunctival diseases, such as conjunctivitis, conjunctival ulcer, or pterygium, blurred vision. Such as Lu Xiaosan, this prescription is used to treat pterygium, and it is reported to have a certain effect. In addition, it is also used for ulcers, pus leaching or chronic ulcers and eczema that have not closed for a long time. It is used alone or with catechin powder, or with oyster powder and sesame oil.
The amount of calamine: an appropriate amount for external use.
Examples of the prescription of calamine:
Luxiaosan (addition and subtraction according to the review of the Yao letter prescription): 9g of Qianghuo, 6g of Ligusticum chuanxiong, 6g of Angelica dahurica, 9g of Scutellaria baicalensis, 9g of Chrysanthemum, 9g of Vitex, 9g of Calamine, 15g of Calamine , 2.4g fire nitrate, 0.3g borneol, first extract the first seven kinds of medicinal water twice, evaporate the medicinal solution into a paste, and add the last three kinds of medicinal powder and mix thoroughly. When using, apply 1% dicaine locally, and then apply a little paste, twice a day. Note: According to ancient and modern medical literature: all for external use, no internal use. However, considering its function of nature and taste, traditional Chinese medicine physicians are very effective in treating eye diseases, eczema, and sores. Whether it can be used for gastric ulcer disease is worthy of research and discussion.

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