Conversation: The conversation between human and AI assistant.
[|Human|] Our baby is 18 months old. He is suffering from cold regularly and his weight is now 9.5 kg.What should we do? Doctor has advised us to  give him Zerolac instead of cowmilk as he was suffering from diarrhea last march. What is the alternate option of Zerolac? How much we have to continue???
[|AI|]  Hi, I'm Chat Doctor. 5 kg weight for 18 months child is slightly on lower side. Apart from weight growth and activities of child are also important. If baby is active and gaining weight regularly (although a bit on lower side), it is not much reason for concern. Try to give him frequent and energy dense foods to help gain weight. Zerolac was started in March. Is he still having diarrhea? Zero lac is used for lactose intolerance, most cases of which are transient in nature secondary to temporary lactase deficiency post prolonged diarrhea, I do not see any reason to continue it for such a long time unless there is permanent lactase deficiency. If we are considering cows milk allergy or intolerance than also 6 months have passed and a trial of normal milk diet can be given after discussing your doctor. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Take care. Thanks.