What good does yerba buena do for ones health?

Some say that Yerba Buena is a natural healant. Hispanic culture uses this for headaches, flu, colds, and paint. I've never had yerba buena but my family has used this for all long as I can remember. I am skeptical of using a plan that is grown in anyone's backyard. The only two ways I know to use it by making a tea with it or by placing it on a burn or cut. Some say that Yerba Buena is a natural healant. Hispanic culture uses this for headaches, flu, colds, and paint. I've never had yerba buena but my family has used this for all long as I can remember. I am skeptical of using a plan that is grown in anyone's backyard. The only two ways I know to use it by making a tea with it or by placing it on a burn or cut.