s a hotspot to pick up ringworm. Other than that, I know eczema
can mimic
ringworm sometimes. And Lymes disease from tick bites, when faded in the middle, can resemble ringworm - and the rash disappears on its own (though I doubt that's what you have). I don't know if your latest rash is still there, but if it is, make an appt. with a dermatologist to get a definitive diagnosis. Hope this helps.