Many people with seasonal allergies notice a frustrating pattern: symptoms seem manageable during the day but become much worse at night. Congestion, sneezing, itchy eyes, and post-nasal drip may intensify just as you’re trying to fall asleep. If your allergies seem to flare up after the sun goes down, you’re not alone. Nighttime allergy symptoms are common and can make it difficult to get the rest your body needs. Understanding why allergies worsen ...