Allergy Testing At SCENT Houston: What to Expect
- Madeleine Herman
- May 4
- 4 min read
If you struggle with chronic nasal congestion, sinus pressure, sneezing, itchy eyes, or post-nasal drip, allergies may be the underlying cause. Allergy testing helps identify exact triggers so treatment can be targeted and effective — often reducing the need for repeated medications or ongoing symptoms.
At SCENT Houston – Sinus Center & ENT Specialists of Houston, allergy testing is often part of a comprehensive ENT evaluation, especially when symptoms overlap with sinus infections, nasal obstruction, or asthma.
Below is a clear guide to help you understand what happens during allergy testing and how to prepare.
What Is Allergy Testing?
Allergy testing identifies substances (allergens) that trigger an immune reaction. Common allergens include:
Tree pollen (very common in Houston)
Grass pollen
Ragweed
Dust mites
Mold
Pet dander
Cockroach allergens
When exposed to allergens, the immune system releases histamine and other inflammatory chemicals, leading to symptoms such as:
Runny nose
Nasal congestion
Sinus pressure
Sneezing
Itchy nose or throat
Watery or itchy eyes
Post-nasal drip
Chronic cough
Fatigue
Testing helps distinguish allergies from sinus infection, nonallergic rhinitis, or structural nasal obstruction such as a deviated septum.
Who Should Consider Allergy Testing?
You may benefit from testing if you have:
Persistent or seasonal allergy symptoms
Frequent sinus infections
Chronic nasal congestion or runny nose
Symptoms that don’t fully improve with over-the-counter medications
Suspected environmental or pet allergies
Asthma triggered by environmental exposures
Chronic cough or throat irritation
Poor sleep related to nasal obstruction
Interest in reducing long-term medication use
Allergy testing is particularly helpful for patients in Houston, where tree pollen, mold, and dust mites are common triggers due to the warm climate.
Types of Allergy Tests
1. Skin Prick Testing (Most Common)
Skin testing is quick, accurate, and typically performed in the office.
What happens:
A small drop of allergen extract is placed on the skin (usually forearm or back)
The skin is gently pricked so the allergen enters the top layer
Results appear within about 15–20 minutes
If you are allergic, a small raised bump (similar to a mosquito bite) will appear.
Advantages:
Immediate results
Highly sensitive
Tests many allergens at once
Minimal discomfort
2. Intradermal Testing
A small amount of allergen is injected just under the skin.
This test is sometimes used when:
Skin prick testing is negative but suspicion remains high
Evaluating environmental allergies more closely
3. Blood Testing (IgE Testing)
Blood testing measures allergy antibodies.
May be recommended if:
You cannot stop antihistamines
You have certain skin conditions
Skin testing is not appropriate
There is concern about severe reactions
Results usually take a few days.
How to Prepare for Allergy Testing
Certain medications can interfere with results.
Typically, patients should stop:
Antihistamines (Benadryl, Zyrtec, Claritin, Allegra, Xyzal)
Some cold medications
Certain sleep medications
Some antacids (rare)
Some antidepressants (only if advised by your physician)
Your ENT or allergy specialist will provide a complete medication list.
Most nasal steroid sprays (Flonase, Nasacort) can be continued.
If you are unsure whether to stop a medication, ask your physician before your visit.
What Happens During the Appointment?
A typical allergy testing visit includes:
Review of symptoms and medical history
Discussion of environmental exposures
Skin or blood testing
Interpretation of results
Personalized treatment plan
Many patients complete testing and review results in the same visit.
Understanding Your Results
Positive results identify triggers contributing to inflammation in the nose and sinuses.
Common Houston patterns include:
Tree pollen in late winter and spring
Grass pollen in spring and summer
Ragweed in fall
Mold year-round
Dust mites year-round
Your physician will help determine which allergens are most clinically relevant.
Not every positive test causes symptoms.
Treatment Options After Testing
Treatment is tailored to your specific triggers and symptom severity.
Options may include:
Environmental Control Measures
Examples:
Dust mite covers for pillows and mattresses
HEPA air filtration
Humidity control
Pet exposure reduction
Showering after outdoor exposure
Medications
Common options include:
Intranasal steroid sprays
Antihistamine sprays
Oral antihistamines
Antihistamine eye drops
Leukotriene inhibitors
Nasal saline irrigations
Immunotherapy (Allergy Drops or Shots)
Immunotherapy helps retrain the immune system over time.
Benefits may include:
Reduced symptom severity
Less reliance on medication
Long-term improvement
Prevention of worsening allergies
Possible improvement in asthma control
Treatment typically continues for 3–5 years.
Both allergy shots and sublingual allergy drops may be options depending on the patient.
Does Allergy Testing Hurt?
Most patients describe skin testing as mildly uncomfortable but very tolerable.
The sensation is often compared to:
Light scratching sensation
Small mosquito bites
Mild itching that resolves quickly
Severe reactions are very rare when testing is performed in a medical office.
Allergy Testing vs Sinus Infection
Many patients assume they have recurrent sinus infections when allergies are the underlying issue.
Untreated allergies can lead to:
Chronic sinus inflammation
Nasal blockage
Increased mucus production
Increased risk of sinus infections
Poor sleep quality
Identifying allergies can significantly improve long-term sinus health.
Why Choose SCENT Houston for Allergy Testing?
At SCENT Houston, allergy testing is integrated into a comprehensive ENT evaluation.
Benefits include:
ENT physician expertise in sinus disease
Evaluation of structural causes of nasal obstruction
Nasal endoscopy when indicated
CT imaging when appropriate
Personalized treatment plans
Focus on long-term symptom relief
Transparent pricing
Same-week appointments
The goal is not just to identify allergies, but to improve breathing, sleep, and overall quality of life.
Schedule an Allergy Evaluation
If you experience persistent congestion, sinus pressure, or seasonal symptoms, allergy testing may provide answers and long-term relief.
Early diagnosis can prevent years of ongoing symptoms and repeated medication trials.