How Do I Know If I Have a Sinus Infection or Allergies? | A Houston ENT Specialist Explains
- Madeleine Herman
- May 19
- 2 min read
Updated: Jun 10
By Dr Madeleine Herman, MD, MPH, FAAOA

If you live in Houston, you’re no stranger to seasonal allergies. But when that congestion lingers or facial pressure sets in, you might wonder—do I have allergies or a sinus infection?
At SCENT Houston, a trusted ENT clinic in Houston, we help patients every day tell the difference. Here’s how you can too.
What’s the Difference Between Allergies and a Sinus Infection?
Both allergies and sinus infections affect your sinuses, causing nasal congestion, pressure, and discomfort. But they have very different causes and treatments.
What Are Allergies?
Allergies happen when your immune system overreacts to things like pollen, dust, or mold—common triggers in Houston’s humid climate.Typical allergy symptoms include:
Sneezing
Runny or stuffy nose (usually clear mucus)
Itchy, watery eyes
Itchy throat or ears
Symptoms lasting weeks to months, especially seasonally
What Is a Sinus Infection?
A sinus infection (sinusitis) happens when your sinuses become blocked and infected, usually by bacteria or a virus. Common sinus infection symptoms include:
Facial pain or pressure (especially around the cheeks, eyes, or forehead)
Stuffy nose with thick yellow or green mucus
Headache
Fever or fatigue
Symptoms lasting 7 to 10 days or more
5 Ways to Tell If You Have Allergies or a Sinus Infection
1. How Long Have You Had Symptoms?
Allergies: Long-term, weeks or months
Sinus Infection: Typically less than 2 weeks but can linger
2. Are Your Eyes Itchy or Watery?
Allergies: Yes
Sinus Infection: No
3. What Does Your Mucus Look Like?
Allergies: Clear and watery
Sinus Infection: Thick, yellow, or green
4. Do You Have Facial Pain or Pressure?
Allergies: Rarely
Sinus Infection: Often, especially when bending forward
5. Do You Have a Fever?
Allergies: No
Sinus Infection: Possible, especially with bacterial infections
Why Houston Residents Struggle with Both
Houston’s high humidity, mold levels, and long allergy seasons make it a hotspot for both chronic allergies and recurring sinus infections. Many patients we see have overlapping symptoms, making it even more confusing to tell the difference.
When to See a Houston ENT Specialist
If you’ve tried over-the-counter treatments and your symptoms won’t go away, it’s time to see a board-certified ENT in Houston.
At SCENT Houston - Sinus Center & ENT Specialists of Houston, we specialize in:
Comprehensive sinus evaluations
Allergy testing and treatment
Sinus infection treatment plans
In-office procedures for chronic sinus issues
An in-office CT scanner and sinus scopes
Schedule Your ENT Appointment in Houston Today
Don’t let sinus pressure, sneezing, or congestion keep you from feeling your best. Schedule an appointment with SCENT Houston today, your trusted Houston ENT specialists, and get the expert care you deserve.
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