The symptoms of skin allergy caused by dichlorvos include redness of the skin in the contact area, then itching of the skin, red rash, rash, maculopapular rash, and even vesicles and rashes, with varying degrees of exudation around the skin, followed by blisters around the skin, and in severe cases, local skin breakouts and ulcers. After the skin allergy, the patient will also have difficulty in breathing, palpitations, chest tightness and shortness of breath, weakness around the body, flushed facial skin color, while there will be obvious secretions from the mouth and lips, and in severe cases, there will be foaming at the mouth and garlic odor in the breath, all of which should be considered as symptoms caused by dichlorvos.