What is the first line treatment for nausea and/or vomiting?

The first-line treatment for nausea and/or vomiting involves the use of inhaled isopropyl alcohol vapors. This method has been shown to effectively alleviate symptoms of nausea due to its immediate impact on the nervous system and its ability to provide rapid relief. Inhalation of the vapors stimulates the olfactory receptors, which may interfere with the pathways that trigger the sensation of nausea.

While other options like intravenous fluids, antihistamines, and activated charcoal can be beneficial in certain situations—such as addressing dehydration, managing specific types of nausea, or treating ingestions—the inhalation of isopropyl alcohol vapors is particularly valuable because it provides quick relief without the need for additional intervention. It can be especially useful in pre-hospital settings or situations where quick management of nausea is necessary.