Erysipelas

Erysipelas is a type of skin infection that affects the upper layers of the skin and the lymphatic system. It usually causes a bright red, swollen, and painful area on the skin, often with a raised edge. This infection mainly involves the skin and lymph vessels, leading to symptoms like fever and chills. The affected area can feel warm and tender, and the infection can spread quickly if not treated. Bacteria, most commonly Streptococcus pyogenes, are responsible for causing this condition. It mainly impacts the skin's appearance and can cause discomfort and systemic symptoms. Early recognition is important to prevent complications.

Erysipelas is an acute superficial cellulitis involving the upper dermis and superficial lymphatics, characterized by a well-demarcated, raised, erythematous plaque. It is most commonly caused by beta-hemolytic group A streptococci (Streptococcus pyogenes), which invade through a break in the skin barrier. The infection leads to lymphatic inflammation and rapid onset of systemic symptoms such as fever and chills. Clinically, it presents with a sharply demarcated, tender, warm, and erythematous rash, often on the face or lower extremities. The condition is significant due to its potential for rapid progression and systemic involvement, including bacteremia and sepsis if untreated. Diagnosis is primarily clinical, supported by laboratory markers of inflammation. Prompt recognition and treatment are essential to prevent complications such as abscess formation or necrotizing fasciitis.