What are the medicinal benefits and effects of willow leaves?
Willow leaf is the leaf of *Salix babylonica*, a plant from the willow family (Salicaceae). Generally, the medicinal properties and effects of willow leaves mainly include clearing heat and detoxifying, reducing inflammation and relieving pain, promoting diuresis, promoting eruption of rashes, and calming the liver. The specific details are as follows:
1. Clearing Heat and Detoxifying
Willow leaf has a bitter and cold nature, with strong effects in clearing heat and detoxifying. It can be used to treat patients suffering from heat-induced urinary disorders, urinary stones, and turbid urine.
2. Anti-inflammatory and Pain Relief
It can be appropriately used for reducing inflammation and relieving pain. When applied externally, it helps treat conditions such as boils, burns, swollen and painful joints, and toothaches.
3. Diuretic Effect
It has certain therapeutic effects on urethritis and cystitis, and is primarily used in the treatment of infantile acne.

4. Promoting Rash Eruption
Willow leaf also has functions of clearing heat, dispersing exterior pathogens, and promoting rash eruption. Decoction taken orally or used for washing the body can treat diseases such as eruptive febrile illnesses and pediatric rash-related conditions.
5. Calming the Liver
Willow leaf has a liver-calming effect and can be used to treat inflammatory conditions and high blood pressure.
It should be noted that willow leaf is bitter and cold in nature and may impair the spleen and stomach. Therefore, it is not recommended for people with weak digestive systems. This herb should be used under the guidance of a physician to avoid harm to the body. During use, dietary influences should be avoided—spicy, raw, cold, and greasy foods, as well as tobacco and alcohol, should be avoided. If no improvement occurs after short-term use, or if intolerable side effects appear, discontinue use immediately and seek medical advice.