Naturally occurring in moist habitats, and if placed growing almost anywhere with a few exceptions, peppermint is a herb full of therapeutic power, healing numerous ills – the common cold, coughs, respiratory and sinus infections, headaches, muscle pain, nerve pain, toothache, digestive problems including heartburn, nausea, vomiting, morning sickness, irritable bowel syndrome and cramps of the upper gastrointestinal tract, just to name a few.