Can Allergies Cause Dry Mouth and Throat?

May 1, 2024 | by Yashaswi Pathakamuri | Posted in FAQ's

Dry Throat

Yes, allergies can sometimes cause dry mouth and throat as part of their constellation of symptoms. When the body reacts to allergens, it releases histamines and other chemicals, which can lead to inflammation and irritation in various parts of the body, including the mouth and throat.

Dry mouth (xerostomia) can occur due to several factors related to allergies:

  • Mouth Breathing: Allergies often cause nasal congestion, making it difficult to breathe through the nose. Consequently, individuals may breathe through their mouths, leading to dryness of the mouth and throat.
  • Medications: Some medications used to treat allergies, such as antihistamines, can have side effects like dry mouth.
  • Dehydration: Allergies can cause increased nasal discharge or sneezing, leading to fluid loss and dehydration, which can manifest as dry mouth.
  • Mouth Breathing: Allergies often cause nasal congestion, making it difficult to breathe through the nose. Consequently, individuals may breathe through their mouths, leading to dryness of the mouth and throat.
  • Irritation: Postnasal drip, a common symptom of allergies, can irritate the back of the throat and contribute to a sensation of dryness.

Managing allergy symptoms with antihistamines, decongestants, nasal sprays, and avoiding allergens can help alleviate dry mouth and throat associated with allergies. Additionally, staying hydrated by drinking plenty of water can help maintain moisture in the mouth and throat. If dry mouth persists or is severe, it’s advisable to consult a healthcare professional for further evaluation and management.

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