A 2-year-old healthy boy presented to the Emergency Department with 3 days of high fever and poor feeding. Physical examination showed gingivostomatitis. Routine investigations didn't show any abnormality. Due to anorexia and mild dehydration, he was admitted for rehydration. The following day, localized swelling, redness, and tenderness were noted on the second right finger. Bacterial paronychia was considered and intravenous flucloxacillin was started. During hospitalization, it was noted that the child sucked his fingers often. The lesion became larger and vesiculobullous (Figure 1). Surgical incision was performed with drainage of serous fluid.