Drinking more water can dilute the secretions in the throat, reduce the irritation caused by secretions to the respiratory tract, and make it easier to cough up. When coughing, you can also pat your back gently with your hands, and it is best to bend down, so that you can cough up phlegm more easily. It should be noted that the strength of patting the back should not be too great.
2. Quit smoking
Smoking will aggravate the symptoms of phlegm in the throat. We will find that the sputum coughed by smokers is very thick, which is caused by the irritation of smoking to the respiratory tract. If you don't have the habit of smoking, you always feel that you can't cough up phlegm in your throat, or it may be caused by the relatively dry environment. If the air is very dry, you can put a humidifier at home or spray some air fresheners. The air humidity is high, which is beneficial to the oscillation of cilia on the mucosal surface and helps to discharge sputum.
3. Adjuvant treatment of diet and medicine
Usually, you can help to expel phlegm by eating some food, such as pear juice and orange peel water. If you have a severe cough, you can take some cough medicine, and if necessary, you should go to the hospital for examination and then treat the symptoms. I hope my answer will help you.