My 5 year old granddaughter has sores on the bottum of 2 of her toes, right in the creases. I put some neosporin and bandaids on them but was wondering if I should soak her foot in epsom salt or something. I've looked on the net and haven't found any pictures that resembled the sores. They look more like her skin just split in the creases. Could it be athletes foot?