The has a cluster of yellowish scabs around his eye and down the side of his face.
The first one appeared about 10 days ago after a "he poked me in the eye" incident, so I assumed the two were linked, but since then, a new one has appeared almost every day and the early ones seem to be getting bigger. The largest is now the size of a 1p coin.
He's 7yo and otherwise well. Any ideas?