Hi, I ve gone through your query and I understand quite well your concern. Based on what you referred, It s obvious that your child is developing intolerance to lactose foods that he takes (milk, butter, cheese). Meanwhile, try not to mix some foods together while he continuous the diarrhea because his is not capable to digest them, BUT rehydrate him with electrolyte solutions and once your child has been on an electrolyte solution for twelve to twenty-four hours and the diarrhea is decreasing, you gradually may expand the diet to include foods such as applesauce, pears, bananas, and flavored gelatin, with a goal of returning to his usual diet over the next few days as he tolerates. It is usually unnecessary to withhold food for longer than twenty-four hours, as your child will need some normal nutrition to start to regain lost strength. After you have started giving him food again, his stools may remain loose, but that does not necessarily mean that things are not going well. Look for increased activity, better appetite, more frequent urination, and the disappearance of any of the signs of dehydration. When you see these, you will know your child is getting better. Please, rememmber that if the diarrhea that lasts longer than two weeks (chronic diarrhea) may signify a more serious type of intestinal problem. When diarrhea persists this long, your pediatrician will want to do further tests to determine the cause and to make sure your child is not becoming malnourished. If malnutrition is becoming a problem, the pediatrician may recommend a special diet or special type of formula. I also suggest you: 1. Consult also a pediatrician in order to consult for his digestion problems. It s very important because there might be some foods which are not suitable for his age and your child might have difficulties in digestion or there might be another problem. 2.Please consult with an allergologist too, maybe he is allergic to some foods too. Hope this information is useful to you Dr. Ermira Biu