Eating peaches and having a scratchy throat may be caused by too much sugar in peaches, allergy to peaches and other reasons. You should consult a doctor in time to find out the cause of the disease. 1. Excessive sugar: it may be that the sugar content of peaches is too high, resulting in a hypertonic environment of the oropharyngeal mucosa, leading to dehydration of the mucosal cells, and the symptom of itchy throat will occur after dehydration. 2. Peach allergy: itchy throat after eating peaches may be a symptom of allergy, because peaches have fuzz, if not cleaned, to a certain extent, it will irritate the skin and throat, causing itchy throat. Eating peaches itchy throat may also exist for other reasons, you should promptly consult a doctor to clarify the specific causes, if necessary, the appropriate treatment.