What you eat to get better from a cough with phlegm and a runny nose depends on the causative cause and the severity of the condition. It is common to see an inflammatory response in the respiratory tract due to the invasion of pathogens in the body. It can be treated symptomatically by taking medicines, such as the Chinese medicine Blue Scutellaria Oral Liquid, Orange Red Phlegm Cough Liquid, Chai Yin Oral Liquid, Qing Kai Ling Granules, etc. Western medicine can choose to take Aminophenol Huang Na Min capsule, compound aminoglutethimide oral liquid, compound cold and flu spirit, etc.. If necessary, you can test blood routine, take sputum and nasal fluid for culture of pathogens, as well as drug sensitivity test, anti-pathogen treatment. Anti-viral can choose to take ribavirin, oseltamivir and other drugs; anti-bacterial can choose to take penicillins, cephalosporins, macrolides and other drugs.