Signs of a sinus infection include a green-yellow discharge from infected sinuses, congestion, headache, cough, sore throat, and pain in the sinuses located around the eyes and nose, according to Healthline. A sinus infection is considered to be chronic if it lasts longer than eight weeks or it returns.
In addition to a sinus discharge, a sinus infection can lead to postnasal drip, where the discharge trickles down the back of the throat, notes Healthline. Sinus discharge can also be combined with congestion where the individual has difficulty breathing from the nose and experiences a reduced sense of taste and smell. Sinus infections often lead to inflammation of the nasal passages and sinuses.
Due to swelling sinuses, sinus infections frequently lead to headaches, states Healthline. Sinus pressure can also manifest in toothaches, earaches and pain in the cheeks and jaw. The time of day and sudden shifts in temperature can worsen headaches.
Postnasal drip can lead to irritation, which can lead to a fit of coughing, according to Healthline. Coughing caused by a sinus infection can easily prevent a person from sleeping, but sleeping upright may help remedy that situation. An individual should seek medical attention if his infection persists for several weeks or recurs.