Three cases of perianal streptococcal dermatitis

We report 3 cases of perianal Streptococcal dermatitis. Case 1 was a 2-year-old girl who had a 2-week history of perianal erythema and erosion. Case 2 was a 6-month-old boy who had erythema and erosion in the perianal and neck regions for a week. In these patients, cultures from swabs of each affected area yielded group A β-streptococcus. In Case 3, a 36-year-old man, perianal tenderness, erythema and erosion had been present for several days. A culture of the perianal erosion revealed group A β-streptococcus and group G β-streptococcus. Treatment with orally administered antibiotics led to rapid resolution of the condition in all three cases.