Erin ordered some peppermint extract for use in foot baths. We often put eucalyptus in the water we have on the sauna stove, and thought that we’d give the peppermint a try. Its effervescent qualities are quite effective. It really clears out your sinuses, but it does a number on your eyes. Not painful, but not comfortable either. We didn’t have to abandon the sauna, but I don’t think we’ll be adding this to our sauna routine anytime soon. I think its back to the eucalyptus for now.