Does Keratolytis Exfoliativa Causes Peeling And Hole In Thick Skin?

Hi, my 13 yr old son has got holes in thick skin on the ball of his foot which looks like it could be pitted keratolytis, now my 4 yr old daughter got a rash all over her torso and legs which felt rough, then her fingers and palms started peeling with air filled blisters which sounds like keratolytis exfoliata, 2 weeks aftr peeling she now got a fever, abdo pains, headache, says her legs are hurting, wonder if the keratolysis might be linked with them both