Author: Amanda King / Editor: Steve Corry-Bass / Reviewer: Amanda King / Codes: / Published: 23/10/2023
An 11-year-old boy is brought into the Emergency Department (ED) by his Father. He presented 4 weeks ago with lesions on his right knee and elbow and was started on oral Flucloxacillin for 7 days. A wound swab was taken which grew multi-sensitive Staphylococcus Aureus. He returned after 10 days, with more lesions and with little healing from the original sites. He was given 7 days of oral Co-Amoxiclav which he has completed.
He has now returned with healing of the original sites, but with ongoing small punched-out sores to his left popliteal fossa and over his left knee. He describes how the lesions develop into a yellow fluid-filled blister, burst and leave behind an itchy red base. His observations are normal, he is afebrile and on examination has no lymphadenopathy or splenomegaly.
Examples of the skin lesions are shown below.
