Final answer:
Bullous impetigo typically presents with large fluid-filled blisters called bullae that rupture, leading to encrusted sores. Intense itching may occur, and systemic symptoms like fever and chills are possible, but less common. The condition is highly contagious, usually diagnosed by appearance, and effectively treated with antibiotics.
Step-by-step explanation:
The clinical features of bullous impetigo include vesicular lesions that are large, fluid-filled blisters known as bullae, often around the nose and mouth. When these bullae rupture, they result in encrusted sores. While intense itch may be present, systemic symptoms such as fever and chills are possible but less common in bullous impetigo compared to nonbullous forms. Additionally, the condition is highly contagious and is most commonly seen in children. It can be caused by Staphylococcus aureus alone, by Streptococcus pyogenes alone, or by a coinfection of both. Early diagnosis is typically through observation and recognition of characteristic skin lesions, and treatment is generally with topical or oral antibiotics.