Q After eating, it isn't hives, but my face flushes and my skin itches. Does food intolerance also affect the skin?
A If you have histamine intolerance or FODMAP sensitivity, beyond digestion you may experience facial flushing, itching, and worsening eczema. Unlike allergic hives that react immediately, these often appear several hours later, and reducing trigger foods improves the skin symptoms as well.
Detailed Answer
If facial flushing, headache, or a hot sensation in the skin appears after eating histamine-rich foods such as fermented foods, processed meats, aged cheese, or red wine, we suspect histamine intolerance. FODMAP sensitivity can also worsen skin inflammation through gut fermentation and increased intestinal permeability.
Korean Medicine Clinic Perspective
In Korean medicine, the gut and skin are viewed as having an interior-exterior (表裏) relationship, so when gut function recovers, skin troubles improve as well. With herbal medicine that strengthens Spleen-Stomach function and clears damp-heat (濕熱), we approach digestive problems and skin symptoms together.
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