My17 month old has had diarrhea for 6 days now. No fever, but one night of vomiting. Diarrhea is white, watery and explosive and occurs 5-10 times a day. Extremely gassy and burping. Smells foul like stomach bile. Eating sporadically and drinking but only wants milk. Has been diagnosed with a peanut allergy, eczema with dairy being a trigger. On soy milk currently. Is clearly having gas pains and is waking up in a sleeper full of diarrhea 2-3 times a night. Should we take him into the ER? Worried about dehydration.