Cough for 2weeks swollen on left side of viocebox painwhen I cough/talk rare scant blood with phlem. What is wrong. Lots of phlegm no fever?

Inflammation. Likely airway inflammation. Scant blood may reflect excess coughing. You need to see an ENT doctor to look at your voice box, therapy may include antibiotics, steroids, and cough suppression.
Cough with swelling. Hello. It is difficult to identify the exact cause without a complete examination. See your ENT for an endoscopic examination.