Since the sympathetic nervous system is responsible for increasing the rate with which the heart beats, by blocking the action of these nerves metoprolol reduces the heart rate and is useful in treating abnormally rapid heart rhythms. Medically Reviewed by a Doctor on 12/3/2014.
Other Symptoms. Other symptoms of a sinus infection include fever; headache, persistent cough; ear pain, pressure, or fullness; eyes may be red, bulging, or painful; and fatigue.
Below are the primary classifications of sinusitis: 1  Acute: This is an infection that sets in quickly and generally lasts for 10 to 14 days. The symptoms present suddenly and include facial pain and a stuffy or runny nose. 2  Chronic: Chronic sinusitis is a sinus infection lasting for eight weeks or longer.