<s>[INST] my 4 year old son has a stomach ache since around 7 am. He does not have a fever, no diaherra, no constipation, has not eaten anything since dinner last night. He says the pain is not sever he just curls up on the bed or holds his stomach and crouches over when he walks. What should I do? [/INST] Location of pain important. Upper abdominal pain usually due to gastritis. Lower abdominal or peri umbilical pain commonly due to mesenteric lymphadenitis.  Pl get a usg abdomen. For pain relief syr cyclopam 3.5 ml orally. Regards </s>