If you feel phlegm sticking to your throat, you should first diagnose whether it is caused by coughing up phlegm or the flow of nasal mucus into the pharyngeal cavity at the back of the nose. In most cases, if there is coughing phlegm, it may be caused by respiratory tract infection, so we can do the corresponding treatment for respiratory tract infection, including anti-viral and anti-inflammatory treatment, together with cough suppressant and expectorant drugs, such as Chuanbei loquat paste, pediatric cough syrup and blue scutellaria oral liquid. If the inflow is from the back end of the nasal cavity, the first step is to treat rhinitis and sinusitis. If you feel that you have phlegm and cannot spit it out and swallow it, it is a symptom of pharyngitis, which requires the use of drugs that clear the throat and benefit the voice, such as Golden Voice and Pharynx Pill and Golden Voice and Clear Voice Pill, and at the same time, avoid spicy and stimulating foods in your diet.