We have had ringworm go through our kids too. Topical cream and two months of oral tablets to fix it. It was around for about 3 months before a proper diagnosis as we couldn't get into to a dermatologist-waiting list is months here. When we did get in he took a photo of it to send to his colleagues as he said it was a 'perfect specimen' I guess if your gonna have ringworm - at least we were really good at it