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Allergies in Pregnancy: What Can You Do

01 Dec 2025

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Having seasonal allergies during pregnancy is very common. Some pregnant people even notice that their allergies, also called allergic rhinitis, begin or get worse. Symptoms like sneezing, itchy eyes, and a stuffy nose can become more bothersome, especially in the spring or after contact with pollen, dust, or animal dander.

During pregnancy, hormones can also increase nasal congestion, which can make allergy symptoms worse. This infographic explains why allergies may be stronger during pregnancy and offers simple tips to cope, with or without medication.

Understanding-Allergies-During-Pregnancy

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If your symptoms become very frequent, very strong, or are triggered by multiple allergens, it could be moderate to severe allergic rhinitis. In some cases, medications such as antihistamines (for example, cetirizine or loratadine) are among the first choices to help better control allergies during pregnancy. Other medications, such as diphenhydramine (Benadryl®), phenylephrine, or pseudoephedrine, are generally less recommended.

As with any medication, it’s important to consult your healthcare professional before starting or changing a treatment to make sure it’s appropriate for your situation. Your doctor, midwife, or pharmacist can guide you toward the most suitable options for you.

For more information, explore our fact sheets and related resources.

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Lexyn Iliscupidez
University of Calgary
Émy Roberge
Centre hospitalier universitaire Sainte-Justine

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