Palm fever and itching consider contact dermatitis, herpes sweating, vitamin deficiency and so on. 1. contact dermatitis: if the patient is allergic, palm area in contact with irritating substances, such as some kind of laundry detergent, soap, laundry detergent or work in contact with chemicals, will release histamine and other substances to appear symptoms, the main manifestation of fever, itching and so on. 2. Sweat blisters: sweat blisters is a kind of disease that recurs regularly every year, mainly occurs on the hands or feet symmetrical blisters, in the beginning there will be itching, and then the palms of the hands, fingers and other parts of the itchy blisters, blisters dry up after peeling, accompanied by itching symptoms. 3. Vitamin deficiency: vitamins have a very important role in the skin, vitamin C can reduce the permeability of blood vessels, but also an important component of the body’s redox system, vitamin E can be antioxidant, to maintain the integrity of the capillaries, the lack of vitamins, but also the palm of the hot and itchy symptoms, usually accompanied by peeling and so on. There may be other reasons for the hot and itchy palms, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.