What is Impetigo primarily caused by?

Impetigo is primarily caused by Staphylococcal bacteria, specifically Staphylococcus aureus, although it can also be associated with Streptococcus pyogenes. This bacterial infection is highly contagious and often manifests as red sores or blisters, usually around the nose and mouth, which can rupture, ooze, and form a yellow-brown crust.

Understanding the correct cause is important in determining appropriate treatment and prevention strategies. For example, recognizing that impetigo is not caused by a fungal infection or a viral infection helps in distinguishing it from other skin conditions that may present similarly but require different treatment approaches. Likewise, acknowledging that it is not an allergic reaction allows practitioners to avoid misdiagnosing the condition and applying inappropriate treatments. Recognizing the bacterial nature of impetigo underscores the importance of hygiene and specific antibiotic treatment to combat this skin disorder effectively.