Eczema, also known as atopic dermatitis (congenital, allergic, atopic dermatitis). It is well documented in Chinese medical literature, such as “dip sores” if the body is drenched with water, “ear sores” if it occurs in the ear, “four bends of wind” if it occurs in the femoral fossa, “kidney capsule wind” if it occurs in the kidney capsule, and “kidney capsule wind” if it occurs in the lower leg due to varicose veins. “kidney capsule wind”; hair in the lower legs, due to varicose veins in the lower extremities caused by called “varicose veins eczema”, suffering from the areola is called “areola eczema”. These are collectively referred to as eczema. The disease of eczema is often clinically lingering and difficult to heal. The cause of the disease, the external causes are mostly caused by wind, dampness, heat guest in the skin; internal causes are mostly caused by internal disorders, liver and gallbladder fire, spleen dampness does not transform, blood deficiency and wind dryness. Gu’s surgery in the clinical treatment of this disease elbow, often with self-designed “dampness removal formula” for internal use, with the family experimental formula “three yellow lotion” for external use, the results are more satisfactory. Case: Qin XX, female, 6 years old, was first diagnosed on April 3, 2014, with itchy eyes, papules and water sores, itching, vesicles and fluid, gradually spreading, and had been treated with western medicine in a certain hospital, but the symptoms could not be controlled. The tongue is red, with a thin yellow coating and a stringy pulse. On May 8, 2014 (follow-up visit) On May 8, the patient was seen to have diffuse flushing around the eyes and mouth, with significant improvement in papules, blisters, vesicles and ooze. The tongue is red, with a thin yellow coating and a stringy pulse. This is a case of internal dampness and heat that cannot be drained outwardly. It is recommended to cool the blood and regulate the wind, clear heat and dampness, take internal dampness removal soup and use San Huang lotion externally. May 8, 2014 (follow-up)