Hi ! Good evening. I am Dr Shareef answering your query. I am not aware of your location. In case you are from a region where tuberculosis is not infrequently seen, then tuberculosis would be the most suspected culprit and the treating doctor should consider investigations related to that, like an ultrasound abdomen (which possibly has been done) , a CECT of abdomen to see the condition of the intestines, etc, apart from some routine blood investigations. A cough of two months duration adds to the suspicion. In case it is diagnosed, the condition is easily treatable, and your kid would become ok, but the medicines prescribed should be taken regularly and sincerely till advised. An LFT would be an additional blood investigation which could relate the side effects of an anti tubercular drug, if any. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.