Impetigo is a highly contagious superficial skin disease more common in children caused by bacteria usually Staphylococcus aureus and at times Streptococcus pyogenes. In impetigo, the lesions begin as a red skin area, blister formation follows; next, the blisters rupture and the drying blister contents leave distinctive honey-colored crusts.
Impetigo lesions usually heal without treatment and without scarring.
Cole C, Gazewood J: Diagnosis and Treatment of Impetigo. Am Fam Physician, 2007 15;75(6):859-64. Go to reference