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Millions of Americans who suffer from seasonal allergies should prepare for an especially difficult spring in 2025, as medical experts warn that this year’s allergy season is shaping up to be one of the worst on record. With pollen counts already registering 10% to 20% higher than average in many regions, doctors are urging allergy sufferers to act early and take proactive steps to manage their symptoms.

Climate and environmental changes have been steadily reshaping allergy trends in recent years, but the 2025 season has brought a particularly intense onset. According to health experts, the combined effects of a delayed winter and a rapid transition to warmer, wetter weather have created ideal conditions for trees and grasses to release higher-than-usual amounts of pollen.

Dr. Catherine Monteleone, an allergy specialist with Rutgers Health, explains that climate change is a growing factor behind worsening allergy seasons. With longer growing periods and increased plant activity, more allergens are being released into the air. As a result, not only are people experiencing earlier symptoms, but even adults who never had seasonal allergies before are now developing new sensitivities.

What makes this season unique is the recent pattern of cold, wet weather followed by a rapid warm-up. Prolonged rain has delayed the blooming of certain trees, which are now releasing pollen all at once. As a result, trees like birch and oak are releasing heavy doses of pollen in April and May, while grass pollen levels are expected to rise steeply in May and June, compounding the issue for allergy sufferers.

In addition to warning of heightened symptoms, experts are offering practical advice to help people cope. Dr. Monteleone emphasizes that avoidance is the first line of defense. That means keeping windows closed during high pollen periods, running air conditioning to filter the indoor air, and minimizing the amount of pollen brought into the home. After spending time outdoors, it's recommended to change clothes, take a shower, and wear sunglasses outside to shield eyes from airborne particles.

Starting allergy medications before symptoms peak is another critical tip. Many people wait until they're already suffering to take antihistamines or decongestants, but by that point, the medication is less effective. Dr. Monteleone advises people to begin treatment as soon as they notice early signs of pollen in the air or feel initial symptoms like itchy eyes, sneezing, or congestion. For some, starting treatment even before the season begins may help prevent the full intensity of symptoms.

She also notes that in particularly bad seasons like this one, doubling up on allergy medications for short periods may help control symptoms, but should be done cautiously and not as a daily routine. If over-the-counter medications fail to provide relief, individuals are encouraged to consult their healthcare provider for stronger prescription options or to consider allergy testing and immunotherapy.

Beyond personal discomfort, the worsening of allergy seasons also raises public health concerns. As more people are affected, productivity declines, and healthcare systems face increased demand for allergy-related consultations and medications. The emergence of adult-onset allergies adds a new layer of complexity, affecting individuals who may not recognize the symptoms or know how to manage them.

This year’s allergy season is also a reminder of the broader implications of climate change. As environmental shifts lead to longer growing seasons and higher pollen production, allergy seasons are becoming more intense and prolonged. In turn, this increases the burden on public health systems and challenges the effectiveness of existing treatment protocols.

In the coming weeks, pollen levels are expected to continue rising, with peaks varying depending on location. Experts advise staying informed through local pollen forecasts, taking preemptive steps to reduce exposure, and seeking professional medical guidance if symptoms worsen. Those with a history of severe allergic reactions, asthma, or other respiratory conditions should be especially vigilant during this high-risk season.

The 2025 allergy season may be a difficult one, but with the right preparation, awareness, and medical support, symptoms can be managed. Experts stress that staying ahead of the season is the best way to minimize its impact and maintain quality of life during these pollen-heavy months.