it seems to be some kind of malabsorption syndrome
that is troubling your child. this smelly sticky stools with explosive gas is not there with lactose intolerance
some other causes like coeliac disease, pancreatic insufficiency
, some chronic and parasitic infections etc can also lead to these symptoms.
you should discuss these possibilities with your doctor.
for diagnosis this will require proper physical examination, some blood tests like CBC (complete blood count
), tissue transglutaminase
, d xylose test, serum protein estimation, etc.
other tests like focal fat estimation, or may be intestinal biopsy may be required to rule our these conditions along with some chronic infections. for pancreatic insufficiency to be ruled out MRI may also be required
I hope my answer guides you
thanks for query
Dr. Amit Kumar