What diseases does the herb Pulsatilla chinensis (Baise Weng) treat?

　　The herb Pulsatilla chinensis (Bai Tou Weng) is commonly used to treat conditions such as damp-heat dysentery, oral ulcers, skin infections, gastrointestinal inflammation, and painful swollen hemorrhoids. Detailed explanations are as follows:

　　1. Damp-heat dysentery: Pulsatilla chinensis has functions of clearing heat, detoxifying, cooling the blood, and stopping dysentery. It can effectively relieve symptoms such as diarrhea, abdominal pain, and bloody stools caused by damp-heat and is a classic herb for treating dysentery.

　　2. Oral ulcers: Pulsatilla chinensis contains antibacterial components that can clear heat toxins in the mouth, reduce redness, swelling, and pain in the ulcerated areas, and promote mucosal healing, making it suitable for oral problems caused by excessive internal heat.

　　3. Skin infections: Pulsatilla chinensis inhibits various bacteria and fungi and can be used externally or internally to help alleviate skin infections, redness, or ulcers caused by heat toxicity or damp-heat.

　　4. Gastrointestinal inflammation: Pulsatilla chinensis clears heat and detoxifies, relieving inflammation caused by damp-heat in the stomach and intestines, such as gastritis or enteritis, while also helping to improve discomfort symptoms of the digestive system.

　　5. Swollen and painful hemorrhoids: Pulsatilla chinensis has anti-inflammatory and pain-relieving effects and can be taken internally or applied externally to reduce swelling and pain caused by hemorrhoids, especially those caused by damp-heat descending downward.

　　When using Pulsatilla chinensis, appropriate methods should be selected according to the condition, and the dosage should be controlled. Special populations, such as pregnant women or individuals with cold deficiency syndrome of the spleen and stomach, should avoid excessive use.