Coughing white foamy sputum is mostly a sign of bronchitis and wind-cold caused by cold and upper respiratory tract infection. In this case, you can take medicine for cold and wind, as well as anti-inflammatory and phlegm-removing drugs, such as compound amoxicillin tablets for cold, and anti-inflammatory drugs such as amoxicillin capsules and phlegm-removing drugs such as amoxicillin oral solution, or nebulized inhalation of Mucosolvan to help resolve phlegm. Pat the back more often to help the phlegm out of the body, drink more Luohan Guo tea, chrysanthemum tea, fresh bamboo water, etc. can also help to resolve phlegm, anti-inflammatory treatment, pay attention to the usual must do a good job of warm measures, as far as possible not to go to outdoor activities, diet must be light diet, drink more hot water, hot rice and other food, help to treat the cold, bronchitis caused by phlegm situation.