My child have frequent diarrohea since three years. every doctor prescribed medicine & i give everytime a curse of antibiotics. in 1 month, 20 days i give him medicine than also, i m unable to cure him cmpletely. he have recurrent attacks of diarrohea. I hospitalised him for 1 month, every test f blood as well as stools has done. Now, i m fed up, plz advise