There is no quick fix for itchy allergic skin. However, patients can be relieved by general treatment, drug intervention and physical therapy. 1. General treatment: patients should identify the allergens as soon as possible, especially for known allergens, to avoid re-exposure, to prevent the recurrence of allergic symptoms. At the same time, we should do a good job of skin care, to choose the safety of the guaranteed medical skin care products. 2. Pharmacological intervention: skin allergies and itching, can cooperate with the doctor to choose glycerine lotion coating, can play a role in stopping itching and astringent. If necessary, you can add oral loratadine, cetirizine and other drugs, can play a sedative and anti-itch effect. 3. Physical therapy: for patients with allergic skin itching phenomenon, can be treated by red light irradiation, so as to achieve anti-inflammatory and promote skin repair. The use of yellow light irradiation can promote skin metabolism, reduce peripheral nerve excitability, relieve itching. It is recommended that patients with allergic skin itching phenomenon, should cooperate with the doctor to give the corresponding treatment, the above drugs must be strictly comply with the doctor’s prescription medication, not blindly use drugs.