White mustard seed is also known as spicy mustard seed it is the seeds of the plant white mustard, but also a kind of outstanding efficacy of the Chinese herbal medicine, its functions are:warm lung and exclusion of phlegm and qi, mammary gland dispersal of knots through the collaterals to relieve pain. It is used for cold phlegm asthma and cough, chest and hypochondrium distension and pain, phlegm stagnation of meridians, numbness and pain in joints, phlegm-dampness flow, yin gangrene, swelling and poison.

1, warming the lungs to dispel phlegm (cold phlegm asthma and cough) with the treatment of cold phlegm congestion caused by chest and hypochondrium distension and fullness, coughing and gas reversal, phlegm more thin, etc., often with Zisuzi Zi, Laiyao Zi with the same, such as the three children to raise the family soup;

With the treatment of cold drinks congested in the chest and diaphragm chest fullness and coercive pain, often with Gan Sui, Daji, such as the control of salivary Dan; if the cold croup for a long time, with Xin Xin, Gan Sui, musk, etc. powder. If the cold asthma for a long time, it can be combined with fine Xin, Gan Sui, musk and other powder, and applied externally to the lungs, anointed region and other acupuncture points in the summer. This product has a strong expectorant effect.

2. It is used for treating the flow of gangrene, numbness of limbs and joint swelling and pain, often used with deer antler gum, cinnamon and ripened dihuang, such as Yanghe Tang; it is also used for treating the numbness of limbs and joints with phlegm stagnation in the meridians and channels in order to dissipate the swelling and reduce the swelling, mostly used with strychnine and myrrh. This product can penetrate the cold phlegm condensed in the meridians and channels, and is the key medicine for treating the phlegm outside the skin and membrane.

Expanded Information:

White mustard glycosides, which are not irritating in themselves, generate volatile oil (white mustard oil) by the action of white mustard enzymes when exposed to water. Mustard volatile oil has a pungent pungent odor and stimulating effect. Applied to the skin, it has a warm feeling and makes it red, and even causes blisters and pustules.

Mustard seed powder is usually removed from the fat oil made of mustard seed ointment, used as an anti-irritant (irritant drugs used locally on the skin, its effect is not limited to the site of the drug, and involved in other parts of the body, resulting in therapeutic effects, known as anti-irritant), the treatment of neuralgia, rheumatism, pleurisy, and sprains and so on.

Wet with warm water before use to enhance the action of mustard enzyme (boiling water inhibits the action of mustard enzyme). Apply for no more than 15 to 30 minutes, and those with sensitive skin should only apply for 5 to 10 minutes.

Mustard seed powder is used as a flavoring agent, which increases salivary secretion and amylase activity, and decreases heart volume and heart rate. A small amount can stimulate the gastric mucosa to increase the secretion of gastric and pancreatic juices, and can sometimes relieve persistent eructation. A large amount taken internally can rapidly cause vomiting, and can be used in the treatment of narcotic drug poisoning.

References:

Baidu Encyclopedia - White Mustard Seed