If you struggle with seasonal allergies, chronic nasal congestion, sneezing, or asthma symptoms, you may already be familiar with allergic rhinitis. But did you know there may also be a connection between allergic rhinitis and a condition called eosinophilic esophagitis (EoE)? At South Bay Allergy and Asthma Group, our specialists help patients throughout the Bay Area better understand how allergic conditions can affect multiple parts of the body—and how comprehensive allergy care can improve quality of life.

EoE is becoming increasingly common in both children and adults, especially among individuals with existing allergic diseases. Understanding the relationship between EoE and allergic rhinitis is an important step toward finding effective treatment and long-term symptom relief.

What Is Eosinophilic Esophagitis (EoE)?

Eosinophilic esophagitis, commonly called EoE, is a chronic inflammatory condition of the esophagus. The esophagus is the tube that carries food from the mouth to the stomach. In patients with EoE, a type of white blood cell called eosinophils builds up in the esophageal lining, leading to inflammation and irritation.

Over time, this inflammation can make swallowing difficult and may even cause narrowing of the esophagus.

Common Symptoms of EoE

Symptoms can vary depending on age, but commonly include:

• Difficulty swallowing
• Food getting stuck in the throat
• Chest discomfort after eating
• Chronic acid reflux symptoms
• Persistent heartburn not relieved by medication
• Abdominal pain
• Feeding difficulties in children
• Nausea or vomiting
• Poor growth in children

Because many of these symptoms overlap with acid reflux or gastrointestinal disorders, EoE is sometimes overlooked or misdiagnosed.

What Is Allergic Rhinitis?

Allergic rhinitis, often called hay fever, occurs when the immune system overreacts to allergens such as:

• Tree, grass and weed pollen
• Dust mites
• Mold spores
• Pets

When exposed to allergens, the body releases histamine and other inflammatory chemicals, leading to symptoms such as:

• Sneezing
• Nasal congestion
• Runny nose
• Itchy eyes
• Postnasal drip
• Sinus pressure

Allergic rhinitis affects millions of Americans and is one of the most common allergic conditions treated by allergists.

How Are EoE and Allergic Rhinitis Connected?

Research has shown a strong association between eosinophilic esophagitis and allergic diseases, including allergic rhinitis, asthma, and eczema.

Many patients diagnosed with EoE also have a history of environmental allergies or food allergies. The same immune system pathways that trigger nasal allergy symptoms may also contribute to inflammation in the esophagus.

Shared Allergic Immune Response

Both allergic rhinitis and EoE involve an overactive immune response. In susceptible individuals, allergens can stimulate eosinophils and inflammatory cells throughout the body.

Patients with allergic rhinitis often already have heightened allergic sensitivity, making them more prone to developing other allergic conditions like EoE.

Seasonal Allergies May Worsen EoE Symptoms

Some studies suggest that seasonal pollen exposure may aggravate EoE symptoms in certain patients. During peak allergy seasons, inhaled allergens may contribute to increased immune activity that affects both the nasal passages and esophagus.

Patients may notice worsening swallowing issues or reflux-like symptoms during allergy flare-ups.

Food Allergies and EoE

Food triggers are another major connection. Many patients with EoE have sensitivities to foods such as:

• Dairy
• Wheat
• Eggs
• Soy
• Nuts
• Seafood

Because allergy specialists evaluate both environmental and food allergies, allergists play a key role in diagnosing and managing EoE.

Why Early Diagnosis Matters

Without proper treatment, chronic inflammation from EoE can lead to complications such as:

• Esophageal scarring
• Narrowing of the esophagus
• Food impaction emergencies
• Difficulty maintaining nutrition

Early diagnosis allows patients to begin treatment before long-term damage develops.

At South Bay Allergy and Asthma Group, our allergy specialists work closely with patients to identify potential allergic triggers contributing to EoE and related allergic conditions.

Treatment Options for EoE and Allergic Rhinitis

Treatment plans are individualized based on symptoms, allergy testing, and overall health.

Allergy Testing

Comprehensive allergy testing can help identify:

• Environmental allergens
• Food sensitivities
• Seasonal triggers

Understanding your triggers is often the first step toward symptom control.

Dietary Management

For many EoE patients, eliminating trigger foods can significantly reduce inflammation and improve swallowing symptoms.

Your physician may recommend:

• Elimination diets
• Food reintroduction plans
• Nutritional guidance

Medications

Treatment may include:

• Antihistamines
• Nasal corticosteroid sprays
• Proton pump inhibitors (PPIs)
• Swallowed corticosteroids for EoE
• Biologic 
• Asthma medications when needed

Allergy Immunotherapy

For allergic rhinitis, allergy shots (immunotherapy) may help reduce long-term allergic sensitivity and improve symptoms over time.

When Should You See an Allergist?

You should schedule an evaluation if you experience:

• Frequent difficulty swallowing
• Chronic reflux symptoms
• Food getting stuck when eating
• Severe seasonal allergies
• Persistent nasal congestion
• Asthma symptoms alongside digestive issues

An allergist can help determine whether allergies may be contributing to your symptoms and coordinate care with other specialists if necessary.

Comprehensive Q&A About EoE and Allergic Rhinitis

Can seasonal allergies cause EoE?

Seasonal allergies do not directly cause EoE, but they may worsen inflammation and symptoms in patients already predisposed to the condition.

Is EoE considered an allergic disease?

Yes. EoE is widely recognized as an immune-mediated allergic condition involving eosinophilic inflammation.

What foods commonly trigger EoE?

Common triggers include dairy, wheat, eggs, soy, nuts, and seafood, although triggers vary from person to person.

Can children develop EoE?

Yes. EoE can affect both children and adults. In children, symptoms may include feeding difficulties, vomiting, abdominal pain, coughing or poor growth.

Is allergic rhinitis linked to asthma too?

Yes. Allergic rhinitis and asthma commonly occur together because both involve allergic airway inflammation.

How is EoE diagnosed?

EoE is typically diagnosed through an upper endoscopy with biopsy performed by a gastroenterologist.

Can allergy testing diagnose EoE?

Allergy testing alone cannot diagnose EoE, but it can help identify environmental and food triggers that may contribute to symptoms.

Are allergy shots helpful for EoE?

Allergy shots primarily treat environmental allergies such as allergic rhinitis. While they may improve overall allergic inflammation, they are not considered a primary treatment for EoE itself.

Can EoE go away on its own?

EoE is generally considered a chronic condition that requires ongoing management to prevent inflammation and complications.

What doctor treats EoE?

EoE is often managed collaboratively by allergists and gastroenterologists.

Why Choose South Bay Allergy and Asthma Group?

At South Bay Allergy and Asthma Group, our experienced allergy specialists provide comprehensive evaluation and treatment for:

• Allergic rhinitis
• Asthma
• Food allergies
• Eosinophilic esophagitis (EoE)
• Environmental allergies
• Chronic sinus symptoms
• Allergy immunotherapy

We proudly serve patients throughout the Bay Area with personalized allergy and asthma care focused on long-term relief and improved quality of life.

Contact South Bay Allergy and Asthma Group

San Jose Office

South Bay Allergy and Asthma Group
2211 Moorpark Avenue Suite 130
San Jose, CA 95128

📞 Phone: (408) 286-1707
 

Los Gatos Office

South Bay Allergy and Asthma Group
14981 National Ave #3
Los Gatos, CA 95124

📞 Phone: (408) 358-1771
📞 Allergy Shot Station: 408-610-2647

Mountain View Office

South Bay Allergy and Asthma Group
2490 Hospital Drive, #209
Mountain View, CA 94040

📞 Phone: (650) 966-8201
📞 Allergy Shot Station: 650-938-6957

Redwood City Office

South Bay Allergy and Asthma Group
100 Arch St Suite 2
Redwood City, CA 94062

📞 Phone: (650) 362-4643
📞 Allergy Shot Station: 650-503-8796

🌐 Website: sballergy.com
📅 Book An Appointment: https://sballergy.com/appointments/