Essential oils that can sub for Over-the-counter meds. ... no side-effects unless you're allergic or taking specific Rx meds. These can enhance the effect of Rx because they help strengthen your system. .... lovethispic.com
Peppermint extract. This is a folk remedy for a homemade vaporizer: Put 1 quart nonchlorinated water in a stainless steel, glass, or enamel pan, and put it on the stove. Add 10 drops peppermint extract or peppermint oil, and bring to a boil. Let it simmer for about 1 hour, until all the water is gone. The volatile oil will saturate the room air.