Itching in old age is a very stubborn disease, affecting many factors, such as diabetes, diabetes induced itching is the cause of glycogen deposition skin irritation of nerves, and chronic itching is a lymphocytic infiltration, the scientific name is tumefaciated granuloma, also very stubborn, but the main treatment to stop the itching, interrupt the vicious cycle of itching, so we must be patient treatment, with safe medication to control the itching, if the itching can not be relieved If the itching can not be relieved, we must do pathological examination to clarify the cause. Must abstain from eating, sour and spicy seafood beef and mutton, mainly leafy vegetables, meat mainly pork, strictly abstain from eating during itching. As far as possible with drug therapy.