1. What is allergic cough? Allergic cough refers to recurring coughs caused by allergen stimulation. It is common during seasonal changes or after exposure to certain allergens. Children\’s immunity is not yet fully developed, so they are susceptible to allergic coughs due to the influence of the external environment. 2. What foods are likely to cause allergic cough? 1. Fish and shrimp: Fish and shrimp foods are rich in protein and trace elements, but they also contain more histamine and other substances, which can easily cause allergic reactions. 2. Milk: Milk contains a lot of lactose and milk protein, which is difficult for some children to digest.