I keep a dropper bottle (alcohol tincture) of peppermint in my car for headaches and nausea. I also have peppermint infused oil, with rose and rosemary for headaches. It's a great digestive. You can take the mint tea 1/2 hour before meals to aid in digestion. Good luck putting all that mint to use! I adore invasive plants....they're so easy to grow!