Erysipelas is a superficial lymphatic infection induced by Group A beta-hemolytic streptococcus infection, often entering through breaks in the skin or mucous membranes. Athlete's foot and dermatitis are often the main causes of erysipelas on the lower legs and face. Malnutrition, excessive drinking, and scratching can also trigger the disease. Clinically, erysipelas manifests as well-demarcated edematous bright red patches on the lower legs or face, with a tense and shiny surface that can even form blisters. The local skin temperature is elevated, and there is tenderness and pressure pain, often accompanied by fever, a burning pain sensation, and nearby lymph nodes may be enlarged.