Laryngitis is often caused by a viral infection. When the vocal cords get inflamed, they get itchy and ticklish. Inflammation of the larynx can disrupt the mucus membranes' ability to produce mucus, ...

These infections are known as a common cold, sinusitis (sinus infection), sore throat, and laryngitis. All of these infections can cause a cough that produces phlegm. Peter Ashman, M.D ...