my two year old son has had diarrhea for three days now with severe diaper rash. there was blood in his stool and dropped off a sample to be annalyzed with no results back yet. he's eating and drinking fine and only complains when he messes his diaper (pain from the diaper rash). overall he's still his active healthy self. today i noticed a rash all over his chest late in the evening and not able to get ahold of a doctor or nurse and don't want to waste a trip to the ER in the middle of the night for no reason.