can cause irritation, swelling, and discomfort. It can also give a sensation of constantly having something stuck in your throat.
Heartburn / acid reflux
A common reason for constant phlegm in the throat is heartburn. The excess phlegm is caused because stomach acid comes back up the esophagus and irritates the lining of the upper respiratory system. This is also referred to as acid reflux. You may also experience a bitter taste in your mouth or a burning sensation in your chest.
According to Dr. Jennifer Robinson on WebMD, you could
