Eczema is an allergic reaction caused by a variety of internal and external factors. The first step in treatment is to find the cause, especially the allergen! But the difficulty lies in the fact that the cause is not easy to find. Eczema is an allergic reaction of the body to various types of internal and external stimuli, thousands of internal and external factors, to find the cause is like looking for a needle in a haystack, although there are many means of detection, but only a very small part of the allergens identified, so one of the ways to stubborn eczema is to keep a diary, a detailed record of each attack before eating contact. From there, analyze and identify the possible causes! For some chronic diseases such as eczema and hives, the best helper for treatment should be yourself, as only you know yourself best. Only the person who knows himself best can identify the cause and avoid it. Do not rely excessively on drugs and laboratory tests, and do not advocate a large number of drugs, so people say: “three parts rely on medicine, seven parts rely on nourishment”. This is the meaning. The human body has a strong ability to repair itself, we should pay attention to the protection, mobilization, rather than suppress this ability!