Itchy and recurring when the neck is hot is generally considered to be due to prickly heat, eczema, contact dermatitis and other causes. It needs to be treated according to the cause, and can be treated by medication (application of antihistamines, glucocorticoid drugs, etc.), general treatment (pay attention to hygiene, avoid scratching, etc.) and other methods. 1. Prickly heat: Glycolite lotion can be used externally under doctor’s guidance to astringe and relieve itching, and glucocorticosteroids such as hydrocortisone cream can be added in case of severe inflammation. 2. Eczema: glucocorticoid cream such as triamcinolone acetate urea cream can be used under the guidance of a physician, together with oral administration of terfenadine tablets and other antihistamine drugs to relieve itching. 3. Contact dermatitis: due to contact with sensitizing or irritating substances, can be used under medical supervision glucocorticosteroid such as dexamethasone acetate ointment, with oral loratadine tablets and other antihistamines to treat. Neck a hot itch back and forth patients, need to pay attention to avoid high-temperature environment, keep the local clean and dry, after sweating in a timely manner to wipe off, avoid often scratching the local. Neck a hot itchy back and forth may have other reasons, need to go to the hospital in time to diagnose the cause of targeted treatment, they can not just randomly use drugs, so as not to cause adverse consequences.