What are the causes of eczema?

Internal cause: The patient's allergic constitution is the cause of eczema, which may be related to heredity or may change with age and environment. Neuropsychological factors such as mental stress, insomnia, overwork, emotional excitement and autonomic nervous dysfunction. In addition, endocrine, metabolic or digestive tract dysfunction, intestinal parasites, focal infection, and certain foods such as fish, shrimp and eggs are also related to the disease.

External factors: including living environment, climatic conditions, sunshine, ultraviolet rays, cold, damp heat, drying, scratching, rubbing contact with silk, artificial fiber, cosmetics, spices, detergent, soap, fur, plants, dyes, bacterial infection of skin and other physical and chemical factors can be induced.