Skin allergies are a series of symptoms that appear on the skin surface after the body comes into contact with allergens, such as erythema, wheals, and papules, generally accompanied by intense itching. Once these symptoms occur, one must avoid applying heat, not wash with hot water, and can instead apply cold water or ice packs, which helps in treating this condition. Additionally, it is important to regularly avoid spicy and irritating foods, avoid staying up late, and strengthen exercise to enhance immunity. Skin allergies can easily become chronic. Once they occur, it is advisable to visit the dermatology department of a regular hospital, where doctors can prescribe oral anti-allergy medications for treatment. In principle, with treatment, it can be completely cured.