The toothache plant (Acmella oleracea) is a flowering plant native to Brazil. The plant is related to the daisy, but it looks very different. It has round, yellow flowers with dark red spots in the center. These flowers, often called buzz buttons or Sichuan buttons, are actually clusters of many tiny flowers. You can find the toothache plant in tropical and subtropical regions, including northern Australia, Africa, Sri Lanka, and southern and central India. Traditionally, the plant is used for its medicinal benefits. Some of these effects have been proven by science. It’s commonly used for toothaches, but it’s also used for other issues like inflammation and gastrointestinal problems. In some parts of the world, the toothache plant is used in food. It has a strong, bitter taste that adds a unique flavor to dishes.