KOOLFEVER Refreshing Mint can be used for fever with stuffy nose for children. Refreshing mint fragrance helps promote smooth breathing while its cooling effect effectively helps bring down the temperature of the fever for the whole night (up to 8 hours per sheet). Mint fragrance & Natural mint oil For this product we have formulated an unique fragrance for a refreshing boost. Mint Fragrance is used as the main active ingredient. We have blended several natural essencial oils such as mint oil, eucalyptus oil, and rosemary oil which are also often used as the active ingredients in medicinal products for promoting the smooth breathing.