The causes of itchy skin on the neck, consider the following: 1, allergic skin diseases: such as solar dermatitis, due to long-term exposure to ultraviolet radiation, and allergic reactions caused by the skin, in the clinical, can see the appearance of erythema and papules on the neck, accompanied by itching, serious cases will also have blisters, and even the phenomenon of peeling skin. Therefore, in terms of treatment, you need to pay attention to sun protection when outdoors, you can apply sunscreen, isolation cream, or play umbrella, ride in a car, and also take oral compound glycopyrrolate tablets, benadryl hydrochloride tablets, in terms of topical medication, you can mix topical mometasone furoate cream and urea vitamin E cream. 2, fungal skin diseases: such as ringworm, mainly caused by keeping pets at home, the parasites on the pets infect people, and A fungal skin disease, the neck will have ring-shaped red spots with elevated edges and a lightly stained center, and it is covered with a thin layer of chaff, accompanied by itching. Therefore, in the treatment, the family pet needs to go to the hospital for vaccination, but also to give deworming drugs for treatment, for patients, can be mixed with topical bifenazole cream and tretinoin econazole cream. If the patient itching is obvious, you can also take oral terbinafine hydrochloride tablets and olanzapine hydrochloride tablets. During the treatment period, it is necessary to abstain from spicy and irritating foods, abstain from alcohol, as well as pay attention to rest and reduce staying up late. Therefore, for patients with itchy skin on the neck, it is recommended to go to a regular hospital, under the guidance of a professional dermatologist, to conduct the appropriate laboratory tests to guide clinical treatment.