Can an Allergic Reaction Cause Fever?

Can Allergies Cause Fever? Allergies often lead to sneezing, a runny nose, and itchy eyes, but can allergies also cause fever? This is a common question that many people ask. The Connection Between Allergies and Fever Allergies are actually an immune system response triggered by allergens like dust, pollen, or pet dander. However, allergies themselves do not cause fever. That said, allergies can lead to secondary infections such as sinus infections (sinusitis) or postnasal drip, which in turn can cause fever. If you want a more detailed explanation of this topic, check out this article for further insights. Differences Between Fever and Allergies Fever is usually a symptom of an infection or illness, whereas allergies are simply an overreaction of the immune system. Here’s a quick comparison: Allergies Fever Runny nose, itchy eyes, and sneezing Body temperature of 100°F (37.8°C) or higher May cause a cough but no body aches Fatigue, body aches, and chills Can happen anytime, especially during seasonal changes Typically caused by viral or bacterial infections No fever involved Always involves an increase in body temperature What Should You Do? If you are only experiencing allergy symptoms, antihistamines or nasal sprays can help. However, if you develop high fever, body aches, or signs of infection, consult a doctor as it could be due to a bacterial or viral infection rather than allergies. Conclusion While allergies do not directly cause fever, they can lead to secondary infections like sinusitis, which may result in a fever. If you are experiencing fever along with allergy symptoms, it’s best to consult a healthcare professional for proper diagnosis and treatment.