The common factors of phlegm in the throat are acute sinusitis, bronchitis, pneumonia, etc. According to different causes and symptoms, we will choose the right cause and symptomatic treatment. 1. Acute sinusitis: due to acute inflammation caused by the nasal mucosa secretes a large amount of nasal mucus, nasal flow from the nasal cavity to the throat can lead to this symptom. Can follow the doctor’s instructions to use nasal glucocorticoids to reduce the output of secretions, such as budesonide nasal spray, oral pharyngitis tablets, clear throat particles to relieve the symptoms of throat discomfort. 2. Bronchitis: Drink more water to supplement the water, or when coughing a pat on the back, to help phlegm out, if necessary, can do nebulizer treatment, the respiratory secretion dilution. Clearly bacterial infection, can follow the doctor’s instructions to give anti-infection treatment, commonly used drugs are cefradine, ofloxacin, etc.; can be used to mucus thinner to promote the discharge of drug treatment, such as aminoglutethimide, acetylcysteine. 3. Pneumonia: it may be caused by viral, bacterial or atypical pathogen infection such as mycoplasma and chlamydia. If it is caused by viral infection, you can give antiviral treatment, such as oral ribavirin as prescribed by the doctor; bacterial infection, you can give antibiotic anti-infection treatment, commonly used drugs are amoxicillin, cefuroxime and so on. If you have phlegm in your throat, you should consult a doctor in time to find out the diagnosis and cause of the disease, and follow the doctor’s instructions to standardize the use of medication and treatment, so as not to delay the condition.