1. Facial dermatosis
   • Seborrheic dermatitis
   • Langerhans histiocytosis
   • Localized herpetic infection
   Although sometimes considered as impetigo vulgaris or a flare-up of eczema, umbilication of the vesicles should suggest the correct diagnosis.

2. Pruriginous dermatosis
   • Scabies
     Knowing how to search for characteristic burrows. Palmoplantar vesiculopustules are frequent in the newborn.
   • Prurigo strophulus
     Papules, with a rapidly excoriated pruriginous vesicle, located on exposed parts.

3. Extensive forms of dermatosis
   
   • Bipolar dermatitis
   • Psoriasis
   • Erythrodermic psoriasis
   • Langerhans cell histiocytosis
   • Diaper dermatitis

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