Help! took my ds who is 15months to docs who said he was unable to make a diagnosis but it looked suspiciously like chicken pox, then 5 hours later her thought it might be hand foot and mouth. How do I know? What do I do? DS eating loads, up on his feet, drinking lots a little grumpy but is also teething. He has a rash on his feet, bottom, hands and its started to go up his legs. They look like little blisters filled with water but none of them have scabbed over yet. Help! I'm worried everyone is going to think my ds is dirty.