DALLAS — Allergy season is lasting longer and hitting harder across North Texas, and health experts say changing environmental conditions are a major factor.
According to the Asthma and Allergy Foundation of America, more than 106 million people in the United States live with allergies or asthma, with pollen seasons growing more intense and extended in many regions.
Warmer temperatures, shifting weather patterns and increased air pollution are contributing to higher pollen production and longer allergy seasons, in some areas stretching nearly year-round.
In the foundation’s 2026 Allergy Capitals report, Dallas ranked No. 64 among the 100 largest U.S. metro areas.
Doctors with Parkland Health say North Texas residents often face overlapping allergy triggers throughout the year, including winter “cedar fever,” spring tree pollen, summer grasses and fall ragweed.
“Seasonal allergies often start with mild symptoms like a runny nose or itchy eyes, but they can escalate quickly and trigger asthma symptoms,” said Cesar Termulo, associate medical director for Parkland’s Community Health Centers.
Health officials said symptoms can include shortness of breath, wheezing, chest tightness and a persistent cough, especially during days with high pollen counts.
When not properly managed, allergies can worsen asthma and affect sleep, daily activities and overall quality of life, sometimes leading to emergency room visits.
Doctors recommend several steps to reduce exposure and manage symptoms:
- Check daily pollen counts and limit time outdoors when levels are high
- Keep windows closed and shower after being outside
- Start allergy medications before peak seasons
- Work with a doctor to develop a plan for managing allergies and asthma
“As we move into peak allergy season, we often see allergies trigger asthma attacks in children,” Termulo said. “If your child has a persistent cough, especially at night, or any signs their asthma is getting worse, reach out to your doctor right away.”
Medical experts say having an asthma management plan is especially important, as the condition causes inflammation and narrowing of the airways, making breathing more difficult during flare-ups.
They emphasize that while allergy seasons may be getting more severe, symptoms can be effectively managed with proper care and early intervention.
