Native Americans used this herb externally for burns, swelling of the lymph nodes, and insect bites. Internally, it was used for pain associated with headaches and stomachaches, measles, coughs, and gonorrhea. It was also used for rattlesnake bites. Today, the herb is used for prophylaxis and treatment of flu, sepsis, and mild to moderate cold infections.
A classically bitter and tonic herb, Andrographis exerts a wide range of protective effects on the body - mostly through its ability to stimulate the immune system, especially macrophages, and to protect the liver from damage, whether by infection or poisoning.