Fish soup is generally not recommended for children with cough. On the one hand, fish soup can stimulate allergic symptoms in children, especially in children with allergies, which often leads to aggravation of the cough and the appearance of a rash on the body, so it is strictly forbidden to drink fish soup. On the other hand, fish soup can cause indigestion in children, as it is not very easy to digest. Therefore, if your child has a cough, parents should not give him/her fish soup and recommend a light diet. If you give your child nutrition, you can eat slightly lighter foods, such as chicken or eggs, but not too much. To sum up, it is not recommended to drink fish soup when a baby has a cough because it can cause allergies or aggravate cough symptoms.