Fever isn’t a typical allergy symptom in kids but allergies can lead to other medical conditions that raise their temperature. Say your child reacts to pollen, dust mites or pets. Breathing in the tiny particles may leave them with constantly inflamed sinuses, which could cause a sinus infection and fever.
The sinuses are bony hollows behind the nose, cheeks, forehead and eyebrows. They’re lined with a thin layer of mucus to trap any particles your child breathes in. Usually this drains down the back of their throat but allergic inflammation can block the sinuses. And trapped mucus is the ideal breeding ground for an infection.
Children with pollen allergies may have inflamed sinuses for weeks or even months on end, while indoor allergies can affect them almost all the time, especially to dust mites. The tiny bugs are present in most homes. That’s why it’s common for kids with allergic rhinitis to have chronic sinusitis.
What are the common respiratory allergy signs and symptoms in kids?
Maybe your child already has their allergy diagnosis. If not, these are the symptoms to look out for so you can tell your doctor:
Fever isn’t a typical allergy symptom in kids but allergies can lead to other medical conditions that raise their temperature. Say your child reacts to pollen, dust mites or pets. Breathing in the tiny particles may leave them with constantly inflamed sinuses, which could cause a sinus infection and fever.
The sinuses are bony hollows behind the nose, cheeks, forehead and eyebrows. They’re lined with a thin layer of mucus to trap any particles your child breathes in. Usually this drains down the back of their throat but allergic inflammation can block the sinuses. And trapped mucus is the ideal breeding ground for an infection.
Children with pollen allergies may have inflamed sinuses for weeks or even months on end, while indoor allergies can affect them almost all the time, especially to dust mites. The tiny bugs are present in most homes. That’s why it’s common for kids with allergic rhinitis to have chronic sinusitis.
What are the common respiratory allergy signs and symptoms in kids?
Maybe your child already has their allergy diagnosis. If not, these are the symptoms to look out for so you can tell your doctor:
Children should only get medication that’s suitable for their age. This can be over-the-counter or prescription medication. It’s important to read the product monograph carefully and always follow your doctor’s advice.
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Last medically reviewed 23 June 2026