Vicks VapoRub is a time-tested remedy renowned for its ability to alleviate congestion, improve breathing, and promote better sleep. This efficacy largely stems from its three core ingredients: menthol, camphor, and eucalyptus oil. Menthol, derived from mint oils, provides a cooling sensation that can help to soothe irritated airways, making breathing easier. Camphor, a compound extracted from the wood of camphor trees, has mild anesthetic and antimicrobial properties, offering relief from cough and nasal congestion. Eucalyptus oil, known for its anti-inflammatory and decongestant properties, helps to break down mucus and clear nasal passages. Together, these ingredients work synergistically to provide comprehensive respiratory relief, allowing users to breathe more freely and enjoy a restful night's sleep.