Sticky phlegm in the throat area all the time and chest tightness should be caused by upper respiratory tract infection and chronic pharyngitis. If the chest tightness is more serious, you should take an X-ray to see if there is an upper respiratory tract infection. If the upper respiratory tract infection is confirmed, it should be treated with anti-inflammatory drugs in a timely manner, you can take levofloxacin with Ambroxol oral solution, which can play the role of anti-inflammatory and expectorant. During this period should try to pay attention to drink more warm water, can play a role in diluting phlegm, promote the role of phlegm discharge, pay attention not to eat too greasy, stimulating food, to avoid aggravating the symptoms.