Itchy skin around the mouth after eating grapes may be related to organic acid irritation, allergies, and so on. Because grapes contain a large number of organic acids and other substances that are irritating and stimulate the skin of the mouth, it may appear that the mouth itches after eating grapes. In addition, it is also possible that the patient himself is allergic to grapes, leading to localized allergic reactions and symptoms such as itchy mouth and numbness of the mouth. Some patients with severe allergy may experience symptoms such as nausea, vomiting and even difficulty in breathing. Therefore, if this symptom occurs, you should stop eating grapes immediately and observe whether there are other adverse reactions. Meanwhile, it is recommended to consult a doctor in time, follow the doctor’s instructions to carry out relevant examinations, clarify the cause with the help of the doctor, and carry out targeted treatment or treatment.