Eczema (called dampness in traditional Chinese medicine) is a common inflammatory skin disease. It is named after the tendency of rash lesions to exude moisture. The course of the disease is protracted and difficult to cure, and it is easy to relapse.

Clinical manifestations The clinical symptoms of eczema are varied and can be divided into three types: acute, subacute and chronic according to the different manifestations of skin lesions during the onset of the disease. The lesions of acute eczema are polymorphous, with erythema, burning, and itching at the initial stage. Then scattered or dense papules or small blisters appear on the erythema. After scratching or rubbing, they break and form erosion and exudate surfaces. Over time or after treatment, the acute inflammation reduces, and the skin lesions become dry, crusted, and scaly, and enter the subacute stage. Chronic eczema evolves from repeated acute or subacute episodes that do not heal, or presents with chronic inflammation at the beginning. It is often characterized by being localized to the same area and not healing for a long time. It is characterized by gradual thickening of the skin, deepening of striae, and Infiltration, pigmentation, etc. The main subjective symptom is severe itching.

Although eczema has the same clinical manifestations as mentioned above, the skin lesions of eczema in different parts of the body also have certain differences. For example, eczema in the external auditory canal is easily accompanied by fungal infection. Breast eczema is common in breastfeeding women and often has cracks and pain. Eczema of the anus and scrotum often causes acute swelling or erosion due to scratching and hot water soaping. Eczema on the lower legs often causes ulcers and is difficult to heal. In addition to the above, there are some special types of eczema with unusual clinical manifestations, such as infectious eczematoid dermatitis secondary to bacterial suppurative skin diseases such as otitis media, ulcers, fistulas, and bedsores, and damage to autologous internal skin tissues. Auto-sensitive eczema caused by material allergy. Infant eczema often occurs in infants and young children after the full month, and often occurs symmetrically on the back of the hands, extended sides of the limbs and buttocks. The skin lesions are shaped like coins and nummular eczema.

Shiduqing capsules, taken orally, can treat Shidu