1. Causes of cough in infants: Because the immunity of infants is not fully developed, they are susceptible to viruses and bacteria, leading to respiratory infections and coughs. In addition, air pollution, climate change, allergies, etc. may also cause coughing in babies. 2. Methods of dietary therapy to relieve cough in infants 1. Pear juice, honey, cut the pear into small pieces, add water and boil until soft, then mash into puree, add appropriate amount of honey and mix thoroughly. Pears can moisten the lungs and relieve coughs