Xu Changqing is a common medicinal plant that is used for its rhizome. The rhizome is harvested and dried in autumn for use, and it has the effects of dispelling wind and dampness, promoting qi circulation, and activating meridians. Let's take a closer look at the efficacy and functions of Xu Changqing!
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【Efficacy and Functions of Xu Changqing】
1. Relieving rashes and itching
Xu Changqing contains danpifen, which is a component found in many anti-itching medications. Applying it topically on eczema, itching, or insect bite-induced red and swollen areas can effectively alleviate symptoms.
2. Antibacterial and anti-inflammatory properties
Xu Changqing contains flavonoids, which have strong antibacterial properties and can inhibit the growth of bacteria, thereby exerting antibacterial and anti-inflammatory effects.
3. Pain relief
Xu Changqing has a significant analgesic effect and can be used to treat lower back pain, toothache, abdominal pain, and various types of pain caused by injuries. It can also alleviate postoperative pain.
4. Treating snake bites
Xu Changqing has a certain therapeutic effect on snake bites. Fresh Xu Changqing can be mashed into a paste and applied topically on the wound. It can also be used together with other drugs with similar effects, such as Banbianlian.
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【Pharmacological Actions of Xu Changqing】
1. Analgesic effect
Pharmacological studies have shown that Xu Changqing contains peonol and other analgesic components, which can increase the pain threshold of the body. Therefore, it has a certain relieving effect on pain caused by various diseases.
2. Antibacterial effect
Research has shown that Xu Changqing has inhibitory effects on Staphylococcus aureus, Streptococcus pyogenes, and other bacteria, making it effective in the treatment of bacterial diseases such as dysentery.
3. Hypotensive effect
Due to the presence of peonol in Xu Changqing, it has been found to have a certain hypotensive effect. It can help dilate blood vessels, increase coronary blood flow, soften blood vessels, reduce peripheral resistance, and lower blood pressure.
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【Clinical Applications of Xu Changqing】
1. Treatment of chronic bronchitis
Take 50 grams of Xu Changqing and prepare it as a decoction or tablet, and take it twice a day for a course of 10 days. It has anti-inflammatory, expectorant, antitussive, and bronchodilator effects. Adding Houttuynia cordata can enhance the therapeutic effect. Some individuals may experience dry mouth and throat after taking the medication.
2. Analgesic use
Xu Changqing can be prepared as a 100 ml injection solution and administered intramuscularly at a dose of 2-4 ml per injection. Analgesic effects can be observed within 5-10 minutes after injection and can last for about 2 hours.
It can be used to treat acute abdominal pain caused by enteritis, gallbladder ascariasis, peptic ulcers, intestinal roundworm infections, cholecystitis, cholelithiasis, and post-cholecystectomy syndrome. Acupoint injections can also be used to treat rheumatic pain.
3. Treatment of skin diseases
Xu Changqing is effective in treating eczema, rubella, contact dermatitis, and stubborn tinea. It can be prepared as a decoction with a dose of 5-10 grams per use, or used topically as a wash. It can also be prepared as an injection or formulation for application.
