If your nose is already running, your eyes are itchy, and you’re reaching for tissues more often than usual, you’re not alone. Across the country, many people are reporting that this year’s allergy season feels particularly intense. Experts confirm that allergy seasons are indeed becoming longer and more severe, and the reasons are complex, but increasingly linked to a changing climate. Understanding what’s happening—and why—can help you manage symptoms and prepare for what may be ahead.
The shift isn’t just anecdotal. A growing body of research points to a clear trend: pollen seasons are starting earlier and lasting longer. This means a greater overall pollen load, and for many, more misery. But what’s driving this change? The answer, according to many health professionals, lies in the broader context of climate change and its impact on plant life.
Climate Change and the Rise in Pollen
“This is due to climate change, which is causing warmer temperatures as well as increased carbon dioxide levels in the atmosphere,” explains Dr. Mariel Benjamin, an allergist at the University of Michigan. Research from the University of Michigan supports this connection, showing how rising CO2 levels can actually boost pollen production in plants. Essentially, plants are responding to higher CO2 concentrations by producing more pollen, exacerbating allergy symptoms for sensitive individuals.
A 2019 study, as Dr. Benjamin notes, revealed that pollen seasons now begin approximately 20 days earlier and last 10 days longer than they did in the past. This extended exposure to allergens significantly increases the burden on those who suffer from seasonal allergies. The increased pollen isn’t just a matter of quantity, either. Studies suggest that climate change may also be leading to pollen that is more potent, triggering stronger allergic reactions.
Regional Variations and the Impact of Weather Patterns
While the overall trend is national, the experience of allergy season can vary significantly by region. In Rockford, Illinois, for example, the fluctuating weather patterns are contributing to particularly bad conditions. “We’ve been having a few days of really cold and then it gets warm and then it gets cold again,” says Mary O’Meara, a nurse practitioner at OSF HealthCare. “I’ve had a lot of patients coming in saying that their allergies are very bad this year.”
These temperature swings can disrupt the typical pollen release cycle, leading to bursts of pollen when warmer temperatures arrive, followed by a temporary reprieve during colder spells. This unpredictable pattern makes it difficult for allergy sufferers to anticipate and prepare for symptom flare-ups. The Midwest, in particular, is susceptible to these rapid shifts in weather, contributing to the heightened allergy experience.
Distinguishing Allergies from Viral Infections
With lingering respiratory viruses still circulating, it can be challenging to determine whether your symptoms are due to allergies or an infection. O’Meara offers some guidance: “Viruses are usually going to be the ones that’s giving you a fever. Allergies, you’re not going to get a fever with. Also with allergies, you’re not going to get any kind of thick green phlegm, you usually don’t have the burning in your sinuses with allergies, that’s typically viral. Body aches, you usually don’t have body aches with seasonal allergies, that’s usually viral.” She emphasizes that allergy-related symptoms are typically characterized by clear discharge, while viral infections often involve thicker, colored mucus and systemic symptoms like fever and body aches.
Managing Allergy Symptoms
Fortunately, there are several strategies for managing allergy symptoms. Over-the-counter antihistamines and decongestants can provide relief, but O’Meara also recommends non-pharmacological approaches. “There’s lots of over the counter allergy medicines. If you would really like to prefer not to take actual medications, normal saline mist or spray for your nose or even a nasal lavage,” she explains. Still, she cautions against using tap water for nasal rinses, particularly in the Midwest, recommending instead normal saline solution purchased from a store or distilled water. The Cleveland Clinic provides detailed guidance on performing nasal saline rinses safely and effectively.
If symptoms persist for more than three to five days despite self-care measures, O’Meara advises seeking medical attention. A healthcare provider can help determine the underlying cause of your symptoms and recommend appropriate treatment options, which may include prescription medications or allergy immunotherapy.
Looking Ahead: Monitoring Pollen Counts and Preparing for the Future
As climate change continues to reshape our environment, it’s likely that allergy seasons will become even more challenging. Staying informed about local pollen counts is crucial for proactive management. Several websites and apps provide real-time pollen forecasts, allowing you to anticipate peak pollen days and take preventative measures, such as staying indoors with windows closed and using air purifiers. Pollen.com is a widely used resource for tracking pollen levels across the United States.
The long-term outlook suggests a continued increase in pollen production and a lengthening of allergy seasons. Ongoing research is focused on understanding the complex interplay between climate change, plant biology, and human health, with the goal of developing more effective strategies for mitigating the impact of allergies. The National Institute of Allergy and Infectious Diseases (NIAID) is actively funding research in this area. You can find more information about their research priorities on their website.
As we navigate this evolving landscape, staying informed, taking proactive steps to manage symptoms, and supporting efforts to address climate change are essential for protecting public health. What are your experiences with this year’s allergy season? Share your thoughts and tips in the comments below.
