Wear necklace neck itch, may be the neck occurred contact dermatitis. Appear wearing necklace neck itchy situation, may be the body of the material in the necklace to produce allergic reaction or necklace in certain substances have irritation caused by, such as gold, crystal, pearl, silver, imitation gold, platinum and so on. If the production of the necklace is mixed with chromium, nickel and other metal components, it may also trigger the neck to appear itchy. If any of these symptoms occur, avoid wearing the necklace again and wash the neck skin with warm water and try not to scratch the affected area. You can use an ice pack to apply a cold compress to the itchy area to help relieve the itching. If the subsequent symptoms are serious, you need to go to the hospital to seek medical treatment, and cooperate with the doctor’s instructions to standardize the treatment.