George Bailanisalmost 6 years ago

Diagnose this, please

My brother, 13 years old, presents with multiple lesions on the top of his head. They have gotten progressively larger and more aggravated over a 3 week period. I assume the lesions are caused by him scratching the area. He says it's itchy so he scratches. Not sure what I'm looking at or what should be done next. PLEASE HELP