Allergic dermatitis in the neck can be treated by general treatment, medication and other treatments. 1. General treatment: If the allergens are clearly identified, the allergens should be removed from the environment in time. If you are allergic to a single allergen, you should try to avoid re-exposure to avoid aggravating the condition. 2. Medication: patients can take antihistamine drugs such as loratadine and ebastine orally under the guidance of doctors. If there are local symptoms such as rashes, you can also follow the doctor’s instructions to apply budesonide cream and other drugs to relieve the symptoms. 3. Other treatments: For patients with known allergens, desensitization training can also be considered. When allergic dermatitis occurs, the patient manifests different symptoms, must promptly go to the hospital, follow the doctor’s instructions to standardize the treatment.