‘Amosa’ is a bengali word meaning mucoid, frothy, greenish, dysentery like stool.
Your information are not adequate to comment on this or give any prescription for your child. What is his/her weight? Is he/she gaining weight properly? Did you give him/her only breast milk up to 6 months of age or introduce animal milk or formula milk by this time? When did you start other foods along with breast milk for example cereals/egg/fruits/khicuri etc? Has the current problem been started after introducing other foods? Are you giving animal milk now? Is the current problem related to intake of specific type of food for example egg/milk/cereals? What is the consistency, color of stool? Is there any visible blood mixed with stool? How many times does he pass stool per day? Is there any specific odor in stool? Is there any abdominal distension or vomiting associated with this problem? How the diarrhoea started? Is it continuously present for months? Was there any previous history of diarrhoea which was not treated well? Is your child immunized or not? I need all these information to give you proper guidance. I also need to see the investigation reports. Most diarrhoeal episodes in children are usually infectious origin. If there is any proven infection( stool culture) then appropriate antibiotics will solve the problem. If this is related to food allergy or lactose intolerance then certain dietary modifications are needed. If your baby has got chronic or persistent diarrhoea, treatment and cure will take a longer time.Most important issue is to identify the cause. You can consult paediatric gastroenterologist who better deal with this problem.