Hello,
Abdominal pain with diarrhea &
green stool are commonly due to food poisoning or infections (
salmonella, giardia or E.Coli). It can be due to intake of green leafy vegetables or bile pigment in the stool.
You can visit ER, get physically examined. Get CBC, Urinalysis(R/E & C/S),
Stool test (R/E & C/S) done.
Your treatment will depend upon the pathology detected. In the meantime, he can take Antacids, PPI's, one sos when needed.
Anti-diarrhea & spasmol (
spasmoproxyvon), one sos when needed for relieve.
Keep him well hydrated, give water, ORS & soups.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Nupur K, General & Family Physician