Allergies flare up when your immune system reacts to allergens like pollen, dust, or mold. Right now, high pollen counts and poor air quality are the primary culprits across much of the U.S.
When you inhale allergens, your immune system overreacts by releasing histamines. These chemicals cause familiar symptoms: runny nose, itchy eyes, and sneezing. Pollen from trees, grass, and weeds is the most common trigger during spring and summer.
Allergy triggers vary by region and time of year. Right now, the biggest contributors are:
Allergy seasons are getting longer due to climate change. Warmer temperatures extend pollen production, while higher CO2 levels increase pollen potency. Urban areas often have higher pollen counts because heat islands accelerate plant growth.
For example, cities like Dallas, Atlanta, and Los Angeles currently report very high pollen levels. The American Academy of Allergy, Asthma & Immunology (AAAAI) tracks these trends and provides forecasts to help allergy sufferers prepare.
Many people assume allergies are only caused by pollen. However, other factors like air pollution, dust mites, and pet dander also play significant roles. Unlike pollen, these indoor allergens can trigger symptoms year-round.
Another myth is that moving to a different climate will solve allergy problems. While some regions have lower pollen counts, allergens exist everywhere. The key is identifying your specific triggers and managing exposure.
For instance, if you live in a city with high pollen levels, checking the forecast can help you plan outdoor activities for lower-pollen days, usually after rain or on windy days when pollen is dispersed.