Chronic Cough
Understanding a Persistent Cough That Won't Go Away
If you have been dealing with a constant cough for weeks or months that does not seem to go away on its own, the cause may be something your immune system, airways, or sinuses are reacting to. Arizona’s dry desert climate, low humidity, and high airborne pollen loads create conditions that can trigger or worsen a persistent cough year-round.
At Carefree Allergy, we evaluate and treat chronic cough in children and adults across Arizona, identifying the underlying trigger so you can finally breathe and rest without interruption.
What Is Chronic Cough?
A cough is considered chronic when it lasts eight weeks or longer in adults. Unlike a short-term cough caused by a cold or respiratory infection, a chronic cough persists well beyond the typical recovery window and often points to an underlying condition that needs to be identified and addressed.
An occasional cough helps clear irritants and secretions from your lungs and prevents infection. But when a cough becomes persistent and disabling, it needs proper evaluation. Many patients live with a severe cough for months before discovering that allergies, postnasal drip, or airway inflammation are at the root of the problem.
Chronic Cough Causes
The most common causes of chronic cough are allergies, postnasal drip, and GERD (gastroesophageal reflux disease). In many patients, more than one factor is involved at the same time.
Postnasal Drip (Upper Airway Cough Syndrome)
Allergies and nasal disease can cause the nose to produce excess mucus that drips down the throat, irritating the windpipe and lungs and triggering a persistent cough. This is one of the most frequently missed causes of a cough that won't go away.
Asthma
Asthma is a leading cause of chronic cough. In Arizona, the combination of dry desert air, intense heat, and seasonal dust storms creates conditions that frequently aggravate airway inflammation. Coughing may worsen during monsoon season, high pollen periods, or whenever the air is particularly dry or dusty.
Allergies
Environmental allergens such as pollutants and airborne particles can aggravate coughing in individuals with allergies. In Arizona, the desert environment brings a unique mix of triggers, including olive trees, mesquite, palo verde, and ragweed, that circulate through dry, wind-driven air for much of the year, making allergic cough especially persistent for many residents.
GERD
Acid reflux from the stomach into the esophagus can irritate the throat and cause chronic coughing.
Mold Exposure
Inhaling mold spores may cause allergic reactions with symptoms including coughing, shortness of breath, and wheezing. Because mold grows both indoors and outdoors, reactions can occur year-round — not just during specific seasons.
Seborrheic Dermatitis
A cough lasting more than three weeks after a COVID-19 diagnosis warrants evaluation. Most cases are related to residual airway inflammation causing increased airway reactivity, though pre-existing conditions such as allergic bronchitis may also be unmasked by the infection.
Chronic Cough Treatment
Treatment for a persistent cough depends entirely on identifying the underlying cause. A general approach or guessing without testing often leads to continued symptoms and ongoing frustration. At Carefree Allergy, treatment may include:
Allergy Testing and Immunotherapy
When allergies or mold sensitivity are contributing to a constant cough, identifying the specific triggers through accurate allergy testing is the critical first step. Sublingual immunotherapy (allergy drops) can gradually reduce the immune system’s reactivity over time, providing long-term relief rather than temporary symptom suppression.
Medication Management
For allergy-related cough, antihistamines and decongestants can help relieve symptoms and clear mucus. For asthma-induced cough, medications such as corticosteroids and bronchodilators may help reduce inflammation and open airways.
Environmental Control
Reducing exposure to allergens at home such as dust mites, mold, pet dander, and pollen, is an important part of managing symptoms alongside medical treatment.
GERD Management
For an acid reflux-related cough, a provider may recommend a trial of acid-suppressing medications as part of the diagnostic and treatment process.
Lindsey Forstie, FNP and the Journey That Shaped Her Approach to Allergy Care
Lindsey’s journey into allergy and asthma care began long before her medical training. As a child, she struggled with undiagnosed asthma. Physical activity meant chest tightness, headaches, and falling behind despite her effort. For years, she believed her limitations were personal rather than medical. It was not until a school nurse recognized the signs of asthma and proper treatment began that everything changed. Breathing improved, confidence returned, and the boundaries she had quietly accepted began to disappear.
That experience shaped the direction of her career. Lindsey became a nurse, then a board certified family nurse practitioner specializing in allergy and immunology. She founded Carefree Allergy with a clear mission: no one should have to live within unnecessary limits caused by untreated asthma or uncontrolled allergies.
Board-Certified Provider
Licensed in Arizona
10+ Years Experience
Telehealth Statewide
Symptoms
A chronic cough may present differently depending on the underlying cause. Common associated symptoms include:
Persistent dry or wet cough lasting more than eight weeks
Postnasal drip or the sensation of mucus in the throat
Chronic throat clearing
Hoarseness or voice changes
Runny nose, nasal congestion, or sneezing
Wheezing or chest tightness
Worsening symptoms at night or during exercise
How to Diagnose Chronic Cough
Diagnosing the cause of a severe or persistent cough begins with a thorough history and physical exam. Because there are multiple potential causes that often overlap, a systematic evaluation is important. At Carefree Allergy, the evaluation may include:
- A detailed review of symptom timing, duration, and triggers
- Allergy skin testing or bloodwork to identify environmental sensitivities
- Assessment of asthma and airway inflammation
- Review of medications, including those known to cause cough (such as ACE inhibitors)
- Referral for spirometry or imaging when needed to rule out structural causes
Cough Triggers
A cough that won’t go away often has identifiable triggers. Paying attention to when symptoms worsen can provide important clues. In Arizona, the dry desert climate adds several regional triggers that are less common elsewhere, including fine dust particles, low humidity that dries out airway membranes, and desert plant pollens that remain active through much of the year.
Common cough triggers include:
- Pollen from desert trees and weeds including olive, mesquite, and ragweed
- Dust mites and pet dander indoors
- Mold spores inside and outside the home
- Dry desert air and low indoor humidity
- Haboobs and dust storms common in the Phoenix valley
- Strong odors, smoke, or chemical fumes
- Exercise or physical activity, especially outdoors during high-pollen months
- Eating (which may indicate GERD involvement)
- Lying down at night
We Can Help You Find the Cause
If you have been dealing with a persistent cough that interferes with your sleep, work, or daily activities, you do not have to keep guessing. Living in Arizona’s dry desert environment means your airways are exposed to unique year-round challenges.
At Carefree Allergy, we evaluate chronic cough from an allergy and immunology perspective, with same-day testing and a personalized approach for children and adults across Arizona.
Schedule a consultation today and find out what is really behind your cough.
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What Our Patients Say
Real stories from real people who found relief
SMSarah Mitchell
Arizona
Seasonal Allergies
★★★★★
After years of struggling with allergies, I finally found relief! The allergy drops are so convenient, and I’m no longer dependent on daily medications.
JRJames Rodriguez
Arizona
Food Allergies
★★★★★
The testing was quick and thorough. Knowing exactly what I’m allergic to has completely changed how I manage my symptoms. Highly recommend!
ECEmily Chen
Arizona
Asthma & Allergies
★★★★★
Lindsey is amazing! She took the time to understand my unique situation and created a treatment plan that actually works. I can breathe easy again!
Common Questions
What causes a chronic cough?
The three most common causes are upper airway cough syndrome (postnasal drip), asthma, and gastroesophageal reflux disease (GERD), though multiple causes are often involved at the same time.
What is a chronic cough?
A chronic cough is defined as a cough lasting eight weeks or longer in adults. It goes beyond a typical cold or respiratory infection and usually indicates an underlying condition that requires evaluation and treatment.
How to get rid of a chronic cough?
Getting rid of a chronic cough requires identifying the root cause first. Treatment varies based on what is driving the cough – whether that is allergies, asthma, postnasal drip, or acid reflux. At Carefree Allergy, we help patients identify their specific triggers and create a personalized treatment plan aimed at lasting relief.
Can allergies cause chronic cough?
Yes. Allergies are among the most common causes of a persistent cough. When the body reacts to allergens such as pollen, dust mites, pet dander, or mold, the resulting nasal inflammation and postnasal drip can irritate the airways and trigger a cough that does not resolve until the underlying allergy is addressed.
Can mold cause chronic cough?
Yes. Mold spore inhalation can trigger allergic reactions that include coughing, shortness of breath, and wheezing. Because mold can grow both indoors and outdoors, exposure can occur throughout the year. If your cough worsens in damp environments or after spending time in a specific area of your home, mold sensitivity may be a contributing factor.
Does vaping cause chronic cough?
Yes. E-cigarette emissions cause lung inflammation by damaging the protective outer layer of the lungs. With continued exposure to chemicals from vaping, the lungs can become damaged, leading to chronic lung conditions including persistent cough. If you vape and have developed a cough that won’t go away, discussing this with a provider is an important step.