People take black horehound for treating nausea, vomiting, spasms, cough, and whooping cough. They also take it for relieving symptoms of nervous disorders, especially mild sleep problems. Black horehound is also used for increasing bile flow.
Some people apply black horehound to the skin as a mild drying agent (astringent) and as a treatment for gout.
Rectally, black horehound is used as an enema against intestinal worms.
Don't confuse black horehound with white horehound.
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