Pennyroyal is used for burning fever. It will promote perspiration. It is a good remedy for toothache, gout, phlegm in chest and lungs, jaundice, intestinal pains, convulsions, ulcers, sores in mouth, itch, insect bites and snake bites, intestinal pains, and colic. Used on a daily basis it could attack and kill sperm cells. It will relieve nausea, but should not be taken by pregnant women as it may cause abortion!