Certain oils, such as eucalyptus and peppermint, have decongestant properties and can help alleviate symptoms of respiratory ailments like coughs and colds. https://buyingguides.co/%EC%8A%A4%EC%9B%A8%EB%94%94%EC%8B%9C-%EB%B8%94%EB%A1%9C%EA%B7%B8-%EC%8A%A4%EC%9B%A8%EB%94%94%EC%8B%9C-%EB%A7%88%EC%82%AC%EC%A7%80%EC%9D%98-%EB%AA%A8%EB%93%A0-%EA%B2%83/