My two older boys have had HFM ... looks like tiny white blisters, but not pussy looking like CP. My boys had a few spots on their backsides, but mainly on the tips of their fingers and toes and some on the feet and hands. In their case, it didn't cause any fever or them feeling ill. They just had spots. Maybe a trip to the dr is in order if you're not sure - particularly if it's contagious, which HFM is.