Can Allergies Cause a Sore Throat?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 21st, 2026.
Yes, allergies can definitely cause a sore throat through several mechanisms. When allergens like pollen, dust mites, or pet dander trigger an immune response, they can cause inflammation in your throat tissues. Post-nasal drip is the most common culprit, where excess mucus from allergic reactions drains down your throat, creating irritation and soreness. Additionally, mouth breathing due to nasal congestion from allergies can dry out throat tissues, leading to discomfort. Studies show that up to 40% of people with seasonal allergies experience throat symptoms. Unlike bacterial infections, allergy-related sore throats typically don't cause fever and often improve with antihistamines or allergy medications.
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