A sinus infection, medically known as sinusitis, involves inflammation and swelling of the air-filled cavities around your nasal passages. This inflammation typically leads to a buildup of fluid, creating an environment where germs can multiply. While not always present, chills can sometimes be associated with a sinus infection, particularly when a fever develops.
Typical Signs of a Sinus Infection
Sinus infections often present with common symptoms that can overlap with those of a cold. People frequently experience facial pain or pressure, particularly around the eyes, cheeks, or forehead, which may worsen when bending over. Nasal congestion is common, causing a blocked sensation and potentially altering one’s voice. Discolored nasal discharge (often yellow or green) is also characteristic.
Postnasal drip, where mucus drains down the back of the throat, can lead to a cough or sore throat. Headaches are common, sometimes with aching in the teeth or ears. Reduced sense of smell or taste and fatigue can also indicate a sinus infection.
Chills and Your Sinus Infection
Chills can occur with a sinus infection, primarily as a physiological response to a fever. A fever is the body’s way of fighting infection by raising its core temperature, as many viruses and bacteria struggle to survive above normal body temperature. When the brain’s temperature-regulating center (hypothalamus) resets to a higher temperature set point, the body initiates actions to reach this new target.
This process often causes a person to feel cold, even when their body temperature is rising. To generate heat, muscles rapidly contract, leading to shivering or chills. While fever and chills are not the most common symptoms of a sinus infection, they can happen, especially with more severe infections.
When to Consult a Doctor
While many sinus infections resolve on their own, certain signs indicate the need for medical attention. Consult a healthcare provider if symptoms, including chills, persist for longer than 10 to 14 days without improvement, or if they initially improve but then worsen. A high fever (generally above 102°F/39°C), especially if it lasts more than three or four days, warrants medical evaluation.
Prompt medical care is also advised for severe symptoms such as intense headache, confusion, changes in vision (like double vision), or a stiff neck. These symptoms could indicate a serious infection or complication. Additionally, if you experience multiple sinus infections within a year or have a weakened immune system, seek professional medical guidance.