The efficacy of Zihuadidin is to clear away heat and detoxify the toxin (to remove heat and toxicity in the body), cool the blood and eliminate swelling (to treat blood heat and eliminate swelling and pain), and with the herbal medicine of removing dampness, it can treat eczema caused by dampness-heat, and you need to consult with a professional doctor for the specifics. But for other evidence caused by eczema treatment role is not great. The dried whole herb of the plant Corydalis violetiflora, family Corydaceae. It is bitter, pungent and cold in nature, and belongs to the heart and liver meridians. It can be decocted, or crushed and applied externally. The main treatment for blood heat congestion, carbuncle, swollen sores, redness, swelling and heat pain, dengtoxin (acute infections, visible skin red like paint), breast carbuncle, carbuncle (carbuncle occurs in the bowels of the intestinal organs, with fever, right abdominal pain, can be felt as a manifestation of the lump), poisonous snake bites, liver fever, eye redness, swelling and pain, exogenous fever and other diseases. Note that people with cold constitution should not take it, and the adverse effects are not clear. If you need to take, it is recommended to consult a professional doctor; if diagnosed with eczema, you need to go to a regular hospital for treatment.