What happens if you drink mouthwash by accident?

Drinking mouthwash by accident can be dangerous and can cause serious health problems. Mouthwash contains ingredients such as alcohol, hydrogen peroxide, and menthol, which can be toxic if ingested. Ingesting mouthwash can cause nausea, vomiting, abdominal pain, and even coma or death in extreme cases. If you or someone you know has accidentally ingested mouthwash, seek medical attention immediately.