What causes wet poison?

Wet toxin, also known as eczema, is a common chronic, relapse-prone skin inflammatory disease. The exact cause is not clear, may be caused by internal and external reasons: 1. Internal factors: abnormal immune function, infection, mental factors, genetic factors, chronic digestive system diseases, parasitic diseases, etc. 2. External factors: Eat some foods that stimulate immune response, such as fish and shrimp, beef, mutton, soybeans, peanuts, mushrooms, etc., inhale pollen, dust mites, animal fur, etc., the external environment changes hot, dry, etc., contact with certain chemicals, etc. Eczema skin lesions are mainly papules, erythema, herpes, itching is intense, ups and downs. Treatment to monitor and stay away from the source of infection, receive systematic treatment. Try to maintain a regular life, maintain a happy mood, reduce stress.