Fire reaction

While fennel is a vegetable, it is pungent and warm in nature, and moderate consumption can help to move the qi, relieve pain and promote digestion, but if you eat too much, it may aggravate the dryness and heat in the body, which will lead to the symptoms of fire, such as: sores on the mouth and tongue, redness and swelling of the throat, and yellowish redness in the urine.

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2. Allergic reaction

Fennel contains an aromatic component - fennel oil, some people eat in moderation does not appear to be uncomfortable, but if you consume too much fennel, allergic symptoms, such as itching, rash, mouth and tongue. However, if you consume too much fennel, you may experience allergic symptoms, such as itchy skin, red rashes, and mouth and tongue sores.