The whole plant is used as medicine. It tastes sweet and has a neutral nature. When taken internally, it can relieve symptoms, strengthen the stomach, relieve cough and reduce phlegm, relieve asthma, clear away heat and detoxify, dissipate heat and reduce swelling. External use can treat carbuncles, sores and burns. Also known as spicy rice cabbage, wild rapeseed, tangela, dried rapeseed, cowpea, chicken vegetable, field cabbage, river scissors, wild mustard, wild mustard, wild cauliflower, mountain mustard, single root vegetable, chervil, golden pod The medicinal parts are the whole plant or flowers of Brassicaceae plant. Ingredients: The whole plant contains brassine. Functions and Indications: Clearing heat, diuresis, promoting blood circulation, and stimulating menstruation. Treat colds, hot cough, sore throat, measles, rheumatoid arthritis, jaundice, edema, boils, amenorrhea, bruises. ① "Supplements of Materia Medica": Removes air-conditioning, long-term cold in the abdomen, and inability to eat, so that people can eat. ② "Compendium": It stimulates the chest and diaphragm, relieves cold phlegm, and relieves pain in the heart and abdomen. ③ "Classification of Herbal Properties": Treats knife and ax injuries, sores, muscle growth, chewing and applying. ④ "Lingnan Medicine Collection Record": Decoction with raw fish and take it can remove the heat in the bones. ⑤ "Guizhou Folk Prescription Collection": antipyretic and diuretic. Treat ascites, gonorrhea; external use to treat burns caused by decoction. ⑥ "Compilation of Commonly Used Folk Herbal Medicines": External use to treat boils; oral use to ventilate blood. Treat women's breast disease, cough and jaundice. ⑦ "Guiyang Folk Medicinal Herbs": clear away heat and detoxify, relieve cough and reduce phlegm. External use to treat lacquer sores, boils, and carbuncles. ⑧Guangzhou Army's "Commonly Used Chinese Herbal Medicine Manual": Clears away heat and diuresis, cools blood and detoxifies. Treats colds, fever, sore throat, and aphonia; lung-heat cough and hemoptysis; acute rheumatoid arthritis; edema. ⑨ "Fujian Chinese Herbal Medicine": Dispel wind and penetrate the surface, regulate qi and harmonize the stomach. Usage and dosage: Oral administration: Fried poplar, 0.5 to 1 taels (1 to 2 taels for fresh). External use: pound and apply. Recipe selection ① To treat colds and colds: 1 to 2 liang of lettuce and 3 to 5 qian of scallion. Decoction in water. ("Fujian Chinese Herbal Medicine") ② To treat hot cough: wild rapeseed costs one to two to five cents. Take it with boiled water. ("Guiyang Folk Medicinal Herbs") ③Treatment of dizziness: Chop wild rapeseed (tender) and mix with eggs, stir-fry with oil. ("Guiyang Folk Medicinal Herbs") ④ To treat epigastric pain: one or two dried lettuce. Decoction in water. ("Fujian Chinese Herbal Medicine") ⑤Treatment of rheumatism in joints: 2 liang of fresh rhizome. Decoction in water. ("Fujian Chinese Herbal Medicine") ⑥Treatment of dry blood tuberculosis: Use one or two lettuce every day, add brown sugar as appropriate. Decoction in water. ("Commonly Used Chinese Herbal Medicine in Shanghai") ⑦To treat measles, use the whole plant of fresh rhizome, one tael each time for one to two years old, and two taels each time for those over two years old. Make the juice, add a little salt, and drink with boiling water. ⑧Treat sinusitis: Appropriate amount of fresh lettuce. Mash a little bit of realgar and stuff it into the nasal cavity. ⑨Treat snakehead boils: Mash fresh lettuce and Sanhuang powder (Chinese patent medicine) for external application, or mix duck egg white for external application. (⑦The following prescription is from "Fujian Chinese Herbal Medicine") ⑩Cure boils and carbuncles: wild rapeseed, mash it and apply it to the affected area. ⑾Cure paint sores: Pound fresh wild rapeseed and apply the juice on it. ⑿ To treat snakebites: one tael and five qian for wild rapeseed and one tael for small fireweed. Decoction in water and take; externally apply to the affected area by mashing Touyoupo (cockroach), small fireweed, realgar, and wild rapeseed. (⑩The following is from "Guiyang Folk Medicinal Herbs") ⒀Treatment of bruises, swelling and pain: 2 to 4 liang of fresh lettuce. Take it with hot wine and apply the residue externally. ("Fujian Chinese Herbal Medicine") Clinical application in the treatment of chronic tracheitis: Take the active ingredient brassinin extracted from Brassica lettuce orally, 200-300 mg per day, 100 cases will be treated on 10 days, and 98 cases will be treated on 20 days. The former has an effective rate of 80%, a clinical control rate of 4%, and a significant rate of 21%; the latter has an effective rate of 90%, a clinical control rate of 8%, and a significant rate of 41%. Practice has shown that this product has an obvious effect of eliminating phlegm, followed by relieving cough and relieving asthma. It has higher efficacy than Brassica lucidum decoction (3 taels per day), and its side effects are also significantly reduced. During the course of treatment, reactions such as dry mouth, stomach discomfort, and dizziness may occur, but they are all mild and short-lived and do not affect taking the medicine. What to avoid: "Commonly Used Chinese Herbal Medicine in Shanghai": This product cannot be used together with Vitex leaves, as it may cause numbness in the limbs.