Asthma and COPD: Understanding the differences and when to seek specialized care

Published: Tuesday, August 25, 2026
Maria "Allie" Angel, MD
Family Medicine
Asthma and COPD: Understanding the differences and when to seek specialized care

As an Allergy & Asthma specialist, I frequently evaluate patients with symptoms such as chronic cough, wheezing and shortness of breath. While asthma is often linked to allergies and airway inflammation, these symptoms can also be caused by COPD and other respiratory conditions. Understanding the differences between asthma and COPD is an important first step toward getting the right diagnosis and treatment.

Asthma vs. COPD: What’s the difference?

What is asthma?

Asthma is a chronic inflammatory disease of the airways that causes them to become swollen and narrowed, making breathing more difficult. Asthma can affect people of any age, although it often begins in childhood. Symptoms may come and go, and many patients experience periods with few or no symptoms when their asthma is well controlled. Asthma flare-ups are commonly triggered by allergens, respiratory infections, exercise or environmental irritants.

As we know, allergies are a major driver of asthma for many individuals. Therefore, identifyingand managing triggers is a key part of treatment. Allergy testing, environmental control measures, personalized medication plans, and allergy shots/immunotherapy can significantly reduce symptoms and improve quality of life.

What is COPD?

According to the American Lung Association, more than 16 million Americans have been diagnosed with COPD, and millions more may be living with the disease without knowing it. COPD, which includes chronic bronchitis and emphysema, is a progressive lung disease most commonly caused by long-term smoking or repeated exposure to lung irritants. While there is no cure, effective treatments can help manage symptoms, slow disease progression and improve quality of life. Unlike asthma, COPD typically develops later in life and causes persistent airflow limitation that gradually worsens over time, making breathing difficulties a daily challenge for many patients.

Recognizing an asthma flare-up

Asthma symptoms can vary from person to person, but common signs include:

  • Shortness of breath
  • Wheezing
  • Chest tightness
  • Coughing

Common asthma triggers may include:

  • Pollen, dust mites, pet dander and other allergens
  • Smoke and strong odors
  • Respiratory infections
  • Cold air
  • Exercise

For many patients, avoiding known triggers and using prescribed controller or rescue medications can help prevent severe attacks. An individualized asthma action plan can also help patients recognize worsening symptoms before they become emergencies.

Recognizing a COPD flare-up

Although COPD symptoms are often present daily, flare-ups can cause a noticeable worsening of symptoms, including:

  • Increased shortness of breath
  • More frequent or severe coughing
  • Increased mucus production
  • Chest tightness
  • Wheezing
  • Fatigue 

Common COPD flare-up triggers include:

  • Respiratory infections
  • Air pollution and smoke exposure
  • Weather changes
  • Physical exertion

Preventive measures such as vaccination, smoking cessation and medication adherence play an important role in reducing COPD exacerbations and maintaining lung function.

Why an accurate diagnosis matters

Many respiratory conditions share similar symptoms, which can make it difficult to know exactly what’s causing your breathing problems. Some patients are diagnosed with asthma when they actually have COPD, while others may have features of both conditions.

I often see patients who have lived for years with chronic coughing, wheezing or shortness of breath without understanding the root cause. Comprehensive evaluation, including a review of symptoms, medical history, lung function testing, and, when appropriate, allergy testing, can help identify what’s driving your symptoms and guide the most effective treatment plan. In some cases, patients may also benefit from evaluation by a pulmonologist, particularly when COPD, complex lung disease or advanced respiratory symptoms are suspected. 

The good news is that whether symptoms are related to asthma, allergies, COPD or another respiratory condition, proper diagnosis and treatment can help you breathe easier and live more comfortably.

Take the next step toward better breathing

If you’re experiencing asthma symptoms, frequent respiratory flare-ups or unexplained coughing, wheezing or shortness of breath, specialized care can help uncover the cause and improve symptom control.

The team at NGPG Allergy & Asthma provides comprehensive evaluation and treatment for asthma, allergies and related respiratory conditions. Through personalized treatment plans, allergy testing and ongoing asthma management, we help patients take control of their respiratory health.