thank you for your query.
There is no reason to panic. Cerelac contains milk powder and rice/wheat powder.Actually there is no need for cerelac in children.Your child has some sort of milk allergy
.if changing the type of milk solves the problem then it is great. the other choice would be to use lactose free milk formula. kindly start weaning your child with home made rice,lentils,potatoes first and then add vegetables,wheat products and fruits with their juices. I hope this answers your query.have a nice day ahead.