Chrysanthemum (Chrysanthemum morifolium or Chrysanthemum indicum) is a well-known traditional medicinal herb, particularly in Chinese medicine, where it is valued for its purported cooling, anti-inflammatory, and detoxifying properties. Historically, chrysanthemum has been used primarily for conditions such as fever, headaches, eye ailments, and hypertension, rather than specifically for nausea or vomiting. However, in some traditional herbal combinations, chrysanthemum may be included as a mild adjunct to support general digestive comfort, often alongside other herbs that more directly target nausea and vomiting, such as ginger or pinellia.

Scientific research directly assessing chrysanthemum’s effects on nausea and vomiting is extremely limited. The available evidence is largely anecdotal or derived from traditional use, and few to no clinical studies have systematically investigated its efficacy for this particular indication. Some preclinical studies suggest anti-inflammatory and mild antispasmodic effects, which could theoretically support digestive health, but these findings are indirect and do not translate into robust evidence for antiemetic use.

In summary, the use of chrysanthemum for nausea and vomiting is rooted primarily in traditional practices, with minimal and low-quality evidence supporting its efficacy for this specific purpose. It is not a primary or well-substantiated remedy for these symptoms, either historically or scientifically.