This is diarrhoea that lasts for two weeks or longer. Occasionally it is due to gut parasites such as Entamoeba histolytica or Giardia lamblia. If so, give oral metronidazole 10 mg/kg, 3 times a day for 5 days. The most important aspect of management (and the most neglected) is nutritional rehabilitation. Micronutrients such as zinc, vitamin A and folic acid are important and should be given. Feeds should be more frequent than usual and should contain adequate calories and protein. Milk-based or egg-based diets are useful.Yoghurt is also effective.
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