Why does smelling a fragrance cause nausea and vomiting?

　　In daily life, some patients experience adverse symptoms such as nausea and vomiting, causing significant psychological distress and severely impairing their quality of life. Patients often worry greatly about their health—so what causes nausea and vomiting upon smelling fragrances?

　What Causes Nausea and Vomiting Upon Smelling Fragrances?

　　Nausea and vomiting triggered by fragrances may be associated with early pregnancy symptoms, gastric disorders, and chronic pharyngitis. In early pregnancy, elevated levels of estrogen and progesterone in women can induce morning sickness, manifesting as nausea, vomiting, acid reflux, and other symptoms. Exposure to fragrances may exacerbate these symptoms. Similarly, individuals with chronic gastritis or gastroesophageal reflux disease (GERD) may experience acid reflux, nausea, and vomiting; fragrance exposure—especially to perfumes—can worsen these symptoms. This occurs primarily because fragrances irritate the nasal mucosa, leading to gastrointestinal dysfunction and subsequent nausea and vomiting.

　　When experiencing nausea and vomiting, avoid spicy, indigestible, and greasy foods. Dietary adjustments are essential: opt for light, easily digestible meals such as congee, consumed in small portions multiple times per day. Avoid spicy foods—including chili peppers, ginger, and mustard—as they directly irritate the gastric mucosa and intensify nausea and vomiting. Also avoid indigestible and greasy foods such as fatty meats, chicken skin, and barbecued items, as consuming them may further aggravate nausea and vomiting.

　　In daily life, cultivate healthy lifestyle and dietary habits. We hope this information proves helpful to you.