Euphorbia hirta is a small tropical herb that has been used in traditional medicine for centuries across parts of Asia, Africa, and the Americas. It grows about 15–50 cm tall, often along roadsides, fields, and gardens. The plant has hairy stems, opposite leaves with serrated edges, reddish coloring, and produces a white, milky sap when damaged. It contains natural compounds including flavonoids, tannins, alkaloids, terpenoids, saponins, phenolics, and steroids, which have attracted scientific interest.

One of its best-known traditional uses is for respiratory problems. Herbal preparations made from the leaves have been used for asthma, coughs, bronchitis, wheezing, and chest congestion. Traditionally, these preparations are believed to help relax the airways, reduce mucus, and make breathing easier, although traditional use should not be considered a proven medical treatment.

The herb has also been used for digestive and urinary complaints. Traditional remedies include it for diarrhea, dysentery, stomach cramps, indigestion, and urinary support. It is sometimes described as a mild diuretic because it may increase urine flow and help the body remove excess fluid.

Euphorbia hirta is also commonly used externally. Crushed leaves or poultices have traditionally been applied to wounds, rashes, insect bites, boils, and other skin problems. It has also been used traditionally for fever and intestinal parasites. Common preparations include teas, decoctions, powders, and poultices.

Despite its long history, the plant should be used carefully. Excessive use may cause nausea, vomiting, or irritation, while its milky sap can irritate the skin and eyes. Its traditional reputation remains strong, but responsible use is important because more research is needed to establish its safety and effectiveness.