Congestion, a runny nose, and postnasal drip are easy to blame on allergies, especially if you deal with seasonal symptoms every autumn. But when an “allergy attack” doesn't follow its usual pattern, it might not be allergies you’re dealing with — it could be a sinus infection.
Even though symptoms may initially seem similar, sinus infections and allergies are very different, involving different causes, different potential complications, and different treatments. As leading providers of both allergy treatments and sinus infection care, the team at ENT Specialists wants you to know these 5 subtle symptoms that can help determine the medical care you need as quickly as possible.
Allergy symptoms happen when you’re exposed to a trigger, like dust, mold, pollen, or other irritant, declining over time as those triggers resolve. A sinus infection, on the other hand, can linger for a long time, especially when treatment is delayed.
In fact, current clinical guidelines specifically mention symptoms lasting longer than 10 days as a key indicator that you likely have a sinus infection. That means if you have long-lasting symptoms that persist for well over a week, it’s definitely time to have an evaluation.
Many sinus infections happen after a cold, flu, or other respiratory ailment. When that happens, you might start to feel better as the initial infection clears — but once the sinus infection takes over, you’ll feel worse again.
Known as “double worsening,” this pattern is easy to overlook — but it’s also a key signal that a sinus infection is probably under way. Bottom line: If you have a second wave of symptoms after an initial period of getting better, don’t assume it’s an allergy. Schedule an evaluation with our team.
Sure, allergies can leave you feeling “stuffed up” and congested, but sinus infections cause significant inflammation inside your sinuses, leading to pressure in your cheeks, forehead, or eyes. Because your upper tooth roots are located very near your sinuses, a sinus infection can cause tooth pain, too.
Once again, facial pain or pressure alone don’t automatically mean you have a sinus infection. That said, when facial discomfort occurs alongside other symptoms on this list, there’s a good chance those symptoms could be related to a sinus infection.
Both allergies and sinus infections increase the amount of mucus you’re producing, but there’s one key difference: While allergies typically cause clear, watery mucus, sinus infections are usually associated with mucus that’s thick and looks yellowish or greenish. Thicker mucus also typically causes more significant nasal congestion when compared with allergies.
That said, the color of your mucus doesn’t tell you by itself whether you have a sinus infection. Yellow or green mucus can happen with other respiratory illnesses, too. Bottom line: Discolored mucus usually means you have an infection, and having a medical evaluation is very important.
While allergies are caused by external triggers like dust and pollen, sinus infections are, well, infections, and like other infections, they can cause a fever. Allergies, on the other hand, don’t cause fevers — not directly, in any case.
When fever is associated with an allergy, it’s usually because the allergy itself interferes with mucus drainage or makes you susceptible to germs in other ways, rather than directly causing the fever like an infection can. Some sinus infections may even be contagious, another factor that differentiates them from allergies.
Both allergies and sinus infections respond best to early treatment, and that starts with knowing which issue you’re dealing with. To have your symptoms evaluated — and to get the care you truly need — request an appointment online or over the phone with the team at ENT Specialists in Salt Lake City, Murray, Magna, Draper, and Tooele, Utah, today.
