Adults and children 2 years of age and over: add 1 Tbs. of solution, for each quart of water, directly to the water in a hot steam vaporizer, bowl, or washbasin, or ¼ tsp. of solution for each pint of water, to open container of boiling water. Breathe in the medicated vapors. May be repeated up to three times daily or as directed by a doctor.