There is no such thing as the toughest trick to treat white phlegm. White phlegm may be associated with upper respiratory tract infections, chronic bronchitis, pneumonia, etc. and is usually treated with medication. 1. Upper respiratory tract infection: it often shows sneezing, nasal congestion, nasal discharge, coughing, coughing up phlegm, etc., which may lead to coughing up white phlegm. Generally, there is a chance of self-healing and no special medication is needed. For those with severe fever, antipyretic and analgesic drugs such as acetaminophen and aspirin may be given. 2. Chronic bronchitis: It is often characterized by nasal congestion, chest tightness, shortness of breath, sore throat, dry cough or coughing up a small amount of mucous sputum, which may lead to coughing up white sputum. Give anti-infective drugs such as amoxicillin, cefuroxime, etc., give phlegm drugs such as ambroxol hydrochloride, bromhexine, etc., give cough suppressants such as dextromethorphan, pentoxyverine, etc., and give asthma medications such as aminophylline. 3. Pneumonia: It often manifests fever, chills, shortness of breath, etc., which may lead to coughing up white sputum. If it is clearly caused by bacterial infection, antibacterial drugs such as cefixime and amoxicillin can be taken. If it is caused by viral infection, drugs such as ganciclovir can be taken as prescribed by the doctor. When the amount of phlegm is excessive, expectorant drugs such as bromhexine hydrochloride and ambroxol hydrochloride can be used. It is recommended that patients coughing up white phlegm be treated with medication under the guidance of a doctor, and not to use medication indiscriminately on their own. Drink plenty of water and avoid spicy and irritating foods such as chili peppers and onions.