Is erysipelas contagious?

Erysipelas most commonly occurs in spring and autumn. It is an acute skin disease that may cause itching and swelling. Is erysipelas contagious?

Is Erysipelas Contagious?

Erysipelas is not contagious. It is an acute inflammatory condition affecting the lymphatic vessels and surrounding soft tissues of the skin and subcutaneous tissue, caused by infection with hemolytic streptococci. Clinically, it is characterized by localized redness, swelling, heat, and pain, often accompanied by systemic symptoms such as headache and fever. It may also be considered a superficial form of cellulitis. Hemolytic streptococci typically invade through minor breaks or imperceptibly small wounds in the skin or mucous membranes. This condition occurs most frequently during spring and autumn.

Patients often have a history of tinea pedis (athlete’s foot) infection or skin trauma. The incubation period is typically 2–5 days. Prodromal symptoms before onset may include malaise, chills, fever, headache, nausea, and vomiting. The disease has an abrupt onset, with the affected area developing an edematous, bright-red plaque—sharply demarcated, tense, hot to touch, tender on palpation—and rapidly spreading peripherally. Lesions may occur at any site but are most common on the lower legs, face, and scalp; in children, they may appear on the abdomen. When lesions involve loose connective tissue (e.g., eyelids or scrotum), marked erythema and swelling are typical.

Patients should rest adequately, receive prompt treatment, and address underlying causes. First-line antimicrobial therapy includes high-dose cephalosporins or penicillin. Antibiotic treatment should continue for 2–3 days beyond complete resolution of systemic symptoms—even after body temperature returns to normal—to ensure adequate therapeutic effect. Locally, cool wet compresses with ethacridine lactate solution are recommended. We hope this information proves helpful to you!