Allergies and Acid Reflux: How They Influence Each Other

Many people experience seasonal allergies and acid reflux, but few realize the two conditions may be connected. While each can occur independently, studies have shown that allergies can trigger or worsen acid reflux, leading to uncomfortable symptoms like heartburn, sore throat and sinus congestion. Understanding the relationship between the two can help you better manage both conditions.

How Do Seasonal Allergies Trigger Acid Reflux?

Seasonal allergies are typically caused by environmental allergens like pollen, dust and pet dander, which can prompt the immune system to release histamines. “While usually acting locally on H1 receptors in the respiratory tract causing sneezing, runny nose and nasal congestion, histamine could potentially also stimulate H2 receptors in the stomach, leading to increased stomach acid production and reflux symptoms such as heartburn and throat irritation,” explains Carla Smith-Ricks, PA-C, an allergy specialist at Schweiger Dermatology Group.

Acid reflux symptoms can also be triggered by increased nasal and sinus congestion. “When mucus from sinus drainage accumulates in the back of the throat, it can irritate the esophagus and worsen acid reflux,” adds Smith-Ricks.

You may have acid reflux if you experience:

• Heartburn or burning sensations in the chest and throat
• Throat irritation or a persistent cough
• Excessive throat clearing or mucus production

“These symptoms often overlap with those of allergies, making it essential for patients to treat both conditions to avoid aggravating the other,” explains Smith-Ricks.

Keep Symptoms in Check

“When you manage your seasonal allergies, often, you can relieve acid reflux as well,” Smith-Ricks says, “and improve your overall quality of life.” Here are three tips she recommends for managing allergy-induced acid reflux:

• Control Allergy Symptoms: Use antihistamines and nasal sprays as recommended by your allergy provider to reduce mucus production and prevent acid buildup.
• Elevate the Head During Sleep: Keeping your head elevated can help reduce nighttime reflux by minimizing acid backflow into the esophagus.
• Avoid Known Allergy Triggers: Identify and minimize exposure to allergens, especially during peak allergy seasons, to keep symptoms in check.

If your symptoms persist or worsen, follow up with an allergy provider. “In addition to improving your acid reflux, proper control of seasonal allergies can help prevent long-term complications and other medical conditions,” she adds.

Carla Smith-Ricks, MPAS, PA-C, is a physician assistant at Schweiger Dermatology Group. She has a passion for patient care and a drive to help people improve their health and quality of life. This desire has guided her to the field of physician assistant where she has utilized her skill and knowledge to provide high-quality health care for more than 20 years.