Erysipelas is an acute inflammation of skin and its reticular lymphatic vessels, which is caused by the invasion of erysipelas from small wounds of skin and mucosa. The lesion is as red as Dan, so it is called erysipelas. The lesion spreads quickly, with little tissue necrosis or suppuration, which is contagious.

The common sites of erysipelas are lower limbs and face. The onset is urgent, and patients often have headaches, chills and fever. Local manifestations are flaky rashes with bright red color, light middle, clear edges and bulges. Finger pressure can make the red color fade, and the red color will recover quickly after removing the pressure. When the swelling spreads to the surrounding area, the central red fades, desquamation, color turns brown, and blisters appear in the swollen area. Burning pain at the lesion site, swelling pain and tenderness in nearby lymph nodes. Tinea pedis or filariasis infection can cause repeated attacks of erysipelas in lower limbs, and can lead to lymphedema and even elephantiasis.

The treatment of erysipelas is mainly non-surgical treatment, and the affected limb is elevated, and 3% Ravennur or 50% magnesium sulfate is used for wet and hot compress locally. Systemic use of antibiotics such as sulfonamides or penicillin, until the systemic and local symptoms disappear, and then continue to use for a week and then stop taking drugs. We should treat tinea pedis at the same time for erysipelas of lower limbs, and pay attention to contact infection.