Wellness Ear, Nose, Throat The Difference Between a Sinus Infection and a Cold Nope, they're not the same thing. By Tammy Worth Tammy Worth Tammy Worth is a freelance healthcare reporter with over 20 years of experience. Her work appears across several publications including The Economist, Bloomberg, Health, Leader’s Edge, WebMD, and KCPT, Kansas City’s public television station. health's editorial guidelines Updated on November 16, 2022 Medically reviewed by Jennifer Pollard Ruiz, MD Medically reviewed by Jennifer Pollard Ruiz, MD Jennifer Pollard Ruiz, MD, is a family medicine physician and experienced medical writer. She has practiced primary care for more than 20 years in the public, private, and government sectors. learn more Share Tweet Pin Email Symptoms like stuffy nose, headache, and sore throat may sound a lot like your run-of-the-mill cold, but they could also be acute bacterial sinusitis, a type of sinus infection. But the two conditions—the common cold and sinus infections—have similar enough symptoms that they're often confused. So how do you tell if you have a cold versus a sinus infection? Unfortunately, it's not a clear-cut answer. "The distinction can be difficult and no one rule applies to everybody," said Neil Bhattacharyya, MD, a professor of otolaryngology at Harvard Medical School. "Only about 2% to 6% of common colds progress to become a true bacterial sinus infection that could benefit from antibiotics," said Dr. Bhattacharyya. Here's what you need to know about both types of illnesses. Defining Sinus Infection and the Common Cold Each year, about 31 million people experience sinus infections—also called sinusitis—which is usually caused by germs growing in the sinuses, the hollow cavities found behind the nose, eyes, brows, and cheekbones. Most often, viruses cause sinus infections, but bacterial infections can cause sinusitis too. Bacterial or viral infection causes mucous membranes in the sinuses to swell and block the tiny openings into the sinuses, which interferes with their ability to drain. The trapped mucus allows bacteria to breed, causing pain and pressure in the head and face. Colds are mild viral upper respiratory infections, and they are not caused by a buildup of germs and inflammation in the sinuses. However, a cold can lead to a sinus infection. Antibiotics can be helpful for those with bacterial sinus infections, but these medications are useless when it comes to fighting cold viruses or viral sinus infections. 8 Signs It's More Serious Than the Common Cold Symptoms While some symptoms of a cold and a sinus infection may be similar—stuffy nose, sore throat, and cough—there are some differences. The color of your nasal discharge can clue you in about whether you have a cold or sinusitis. Unlike colds, which generally produce clear mucus, bacterial infections can produce green or yellow mucus. However, viruses sometimes produce colorful discharge as well, so this isn't considered a fail-safe test. Cold Symptoms The main difference between the symptoms of a cold and sinus infection is how long they linger. Dr. Bhattacharyya said cold sufferers typically have a runny nose for two to three days, followed by a stuffy nose for two to three days. Most people will recover in 7–10 days from their symptoms. The following symptoms are common with colds: SneezingStuffy noseRunny noseSore throatCoughing Sinus Infection Symptoms Alternately, sinus infections usually last longer than a common cold and may hang around for 3–8 weeks. A fever may also signal a bacterial infection. Sinus infections are sometimes accompanied by a low-grade fever, while colds typically are not. Other viral infections (such as the flu) do cause fevers, however. Here are some other symptoms of sinus infections: Runny noseStuffy noseFacial pain/pressureHeadacheMucus dripping down the throat (post-nasal drip)Sore throatCoughBad breath Dr. Bhattacharyya said there is no rhyme or reason as to why some people tend to develop sinus infections and others don't. What Does It Mean to Have a Chronic Sinus Infection? Treatment For most people, there are some preventive measures that can help stave off a sinus infection, or, if one occurs, help relieve symptoms, said William Marshall, MD, an infectious disease specialist previously on staff at the Mayo Clinic. Dr. Marshall recommended the same things "mothers recommend for a cold," like rest, drinking lots of fluids, breathing steam, and irrigating the sinuses with saline spray or a neti pot, a container used to rinse the sinuses with saline solution. Over-the-counter decongestants can also be helpful, but Dr. Marshall said they should not be used for more than three days because some products can exacerbate congestion and raise patients' blood pressure and heart rate. Bacterial sinus infections can last for up to 8 weeks, but the use of antibiotics speeds up the recovery process. Still, according to Dr. Bhattacharyya, about 70% of sinus infections resolve on their own, and many patients prefer to let them run their course. "Antibiotics mainly help to speed up the healing process," Dr. Bhattacharyya said. "But before antibiotics were around, people weren't dropping dead of sinus infections—and they still aren't," Dr. Bhattacharyya explained. If left untreated, however, sinusitis can cause permanent damage to the sinuses and, in very rare cases, can lead to meningitis, Dr. Marshall said. If patients miss work or other activities due to sinus infections, or if their symptoms recur frequently, they should see a healthcare provider for evaluation. A Quick Review While colds and sinus infections may have similarities, they also have differences. Both illnesses can cause sore throat, stuffy nose, and cough. But as far as treatment, you can treat a sinus infection with antibiotics but antibiotics will not treat the common cold. Both illnesses can benefit from rest and drinking plenty of fluids. If you have any questions regarding how to treat your symptoms, always seek advice from your healthcare provider. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit Sources Health.com uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. American College of Allergy, Asthma & Immunology. Sinus infection. Centers for Disease Control and Prevention. Sinus infection (sinusitis). Centers for Disease Control and Prevention. Common cold. National Library of Medicine. Sputum culture. Centers for Disease Control and Prevention. Common colds: Protect yourself and others.