Children who have a cold and cough with sputum that is white and foamy are more likely to have respiratory infections and other conditions that require prompt treatment. Most children with colds have coughing symptoms, and many of them also cough up sputum. If the sputum is mostly white and foamy, respiratory tract infections and pneumonia and bronchitis are more likely. This kind of disease will mostly lead to increased secretions in the respiratory area and foamy due to the infection, and requires active medical treatment, taking antibiotics or antiviral drugs under the guidance of a doctor. It is also important to beware of the possibility of pediatric asthma. If a child coughs with white sputum and has shortness of breath and croup in the chest when coughing, and the symptoms are difficult to be relieved by medication, he or she may be suffering from pediatric asthma and should be examined and treated in a targeted manner. However, most coughs in children are respiratory tract infection-like conditions, and timely treatment can usually relieve them in three to five days. At the same time, parents can also give their children appropriate nebulized inhalation treatment to help dilute and soften the phlegm in the throat area for discharge. For young children who cannot cough up sputum, sputum patting is sometimes necessary. A child’s cough with white frothy sputum is most often a respiratory infection and pneumonia and should be treated promptly, while a few may have pediatric asthma and need to be handled with caution.