How does neck allergy red itch do

Neck allergy itching, this situation and eating food, taking drugs, pollen in the air, metals, dyes, etc., at this time can take anti-allergic drugs, such as cyproheptadine, Claritan and other drug treatment, can also be applied to the affected part calamine lotion, cyproheptadine ointment for treatment, at the same time during the onset, diet do not eat fish, shrimp, crab, beef, mutton and other hair and pepper, ginger, garlic, mustard, leek and other spicy food, do not drink, Pay attention to keep the skin clean. If repeated attacks, can go to the hospital to do allergen tests, if necessary, desensitization treatment.