The itchy body of the elderly may be caused by skin dehydration or skin allergy, which can be treated by skin hydration and reasonable medication. 1. Skin dehydration: with age, the sebaceous gland secretion function gradually decline, the secretion of oil gradually reduced, can be properly coated with skin care products to supplement the skin moisture to stop itching, such as applying petroleum jelly, urea cream and other products with certain moisturizing effect. 2. Skin allergy: the elderly body is poor, life in contact with rubber, seafood and other various may lead to skin contact dermatitis, eczema, urticaria, etc., will produce itching, rash, first of all, should be away from the allergens, if necessary, oral loratadine tablets to relieve. The elderly body itching, there may be other disease factors, if the symptoms are more serious, it is recommended to go to the hospital for examination.