Itchy neck in pregnancy can be caused by eczema. This condition may be due to contact with allergens or ingestion of allergic foods, especially protein foods, such as seafood and so on. Then, localized allergic changes may occur, mainly in the form of localized pimples, papules and inflammatory manifestations, and some may have itchy symptoms. But whether there is an association with pregnancy is generally difficult to say. Because if the itching caused by pregnancy, usually not only the neck itching, may be all parts of the body will appear itchy symptoms, so for this case is usually the neck skin localization, the formation of allergic reaction.