my child has heart problem she needs to undergo surgery doc hav asked her to gain weight but she is no able to

A. The Child is seven months old as of now so you can give proper semisolid food and water also I would just like to tell you at the very same time a lot of kids do not gain weight immediately due to the issue that your child is in so you can consult a nutrition expert once for that for the correct diet plan that you should follow for your child