Podcast Summary: "Why Allergies Happen and How to Find Relief"

Podcast: Health Matters
Host: Courtney Allison
Guest: Dr. David Gudis, Otolaryngologist-in-Chief, Division of Rhinology & Anterior Skull Base Surgery, NewYork-Presbyterian/Columbia
Date: April 8, 2026

Episode Overview

This episode tackles the ins and outs of allergies—what triggers them, why they’ve gotten worse in recent years, the surprising ways they influence our overall health (including mental well-being), and practical strategies for relief. Dr. David Gudis explains the immune mechanisms behind allergic reactions, dispels myths, and shares up-to-date, evidence-based advice for allergy sufferers.

Key Discussion Points & Insights

What Are Allergies and How Do They Work?

• Definition & Modern Understanding

  • Hay fever is an outdated term for "allergic rhinitis," i.e., allergies caused by environmental triggers (01:39).
  • "Allergic rhinitis is basically an allergic reaction to something in the environment... causing symptoms similar to a cold." — Dr. Gudis (01:39)
  • Symptoms: sneezing, nasal congestion, runny nose, itchy eyes, fatigue, sleep disturbance, and even effects on mental health (02:09).

• Immune System Overreaction

  • Allergies are not caused directly by allergens like pollen, but by the immune system overreacting to them (00:02, 02:49).
  • "The pollen isn't causing your nasal congestion. Your immune system's attack on that pollen is causing the nasal congestion and the sneezing and the itching..." — Dr. Gudis (00:02)

• Systemic Effects

  • The inflammatory reaction impacts multiple body systems and can interfere with overall well-being far beyond just the nasal passages (02:13).

Common Allergens & How Prevalent Are They?

• Most Common Allergens
  • Tree pollen in spring, pet dander, cockroach fecal matter, and dust are frequent culprits—especially in urban areas (04:26).
  • Up to 20% of the population has some kind of environmental allergy (04:26).
  • "Cockroach fecal matter actually is a very common antigen, as is dust in urban environments." — Dr. Gudis (04:38)

Can Allergies Get Worse Over Time?

• Progression & Adult Onset
  • Allergies can worsen with repeated exposure over years, especially through young adulthood (05:07).
  • Adults can develop new allergies after an environmental change, but adult-onset allergy is less likely after age 30–50 (05:45).
  • "I... just got like a cold that would not go away... I had actually developed allergies, which I had never had before." — Dr. Gudis (05:53)

Pollen Season Is Lengthening

• Longer Allergy Seasons
  • Pollen seasons in the US are now about three weeks longer than they were 50 years ago (06:24).
  • "It's not their imagination that it seems to be worse this year than last year... These things really are happening." — Dr. Gudis (06:36)
  • Higher pollen concentrations and more weeks of symptoms mean more individuals are suffering, especially those in lower socioeconomic brackets (07:06).

Societal and Personal Impact

• Economic and Productivity Burden

  • Allergies are a top reason for reduced workplace productivity (07:06).

• Reasons for Increasing Prevalence

  • Modern living (e.g., sanitized environments, less exposure to germs) may cause immune systems to overreact, contributing to the increase in allergies (07:49).
  • "Our immune system is not well engineered for the environment of 2026... It's impossible for evolution to keep up with the rate of change in our environment." — Dr. Gudis (07:49)

Allergies and Mental Health

• Deep Interconnections
  • Allergies can disrupt sleep and concentration, degrade quality of life, and exacerbate anxiety and depression (08:23–09:35).
  • Poor sleep and impaired sense of smell (from congestion) both contribute to mental health issues (08:31).
  • "When people have a poor sense of smell, they report increased feelings of loneliness." — Dr. Gudis (08:56)
  • Allergies also trigger "brain fog" and impaired memory/concentration.

How to Find Relief: Practical Tips

• Environmental Controls (Avoidance)

  • Close windows and use air conditioning, especially in the bedroom (09:37).
  • Change clothes and shower immediately after coming home to remove pollen (09:37).
  • Regular vacuuming and using air purifiers/hardwood over carpet when possible.
  • "If you come home and get right into bed... you're just rolling around in your allergen all night." — Dr. Gudis (09:50)

• Over-the-Counter Treatments

  • Nasal steroid sprays are the most effective and safe for most people; rare minor side effects (10:29).
  • Nasal antihistamine sprays are also very effective.
  • Oral antihistamines can be added if needed.
  • Begin medications before allergy season peaks for best results (11:17).
  • "If someone has allergies, they should start their treatment before allergy season gets bad. Once it gets bad, it’s harder to treat, no question." — Dr. Gudis (11:25)

• Escalation: Immunotherapy

  • If OTC options fail, allergy testing and immunotherapy (allergy shots) may be needed (11:34).
  • Immunotherapy retrains a different part of the immune system to respond to allergens less aggressively (12:00).

• Nasal Rinses & NETI Pots

  • NETI pots and sinus rinse bottles are time-tested, safe methods for washing allergens and irritants out of the nasal passages (12:33).
  • "NETI pots actually go back thousands of years... It's rinsing out the nose of any allergens, dust, and debris..." — Dr. Gudis (12:33)

When It’s Not Allergies: Differentiation

• Key Differences Between Allergies, Colds, and Sinus Infections
  • Allergies cause symptoms that persist for weeks, while colds improve in 3–4 days and are mostly gone after a week (13:13–13:50).
  • Fever and body aches are uncommon with allergies but common with infections.
  • Thick yellow/green mucus, facial pain escalating after 5–7 days suggests a bacterial sinus infection.

Notable Quotes & Memorable Moments

• "The pollen isn't causing your nasal congestion. Your immune system's attack on that pollen is causing the nasal congestion and the sneezing and the itching and the sleep disturbance and the brain fog and the difficulty concentrating. It's the immune system's overreaction that really is the problem."
  — Dr. David Gudis (00:02)

• "When people have a poor sense of smell, they report increased feelings of loneliness."
  — Dr. David Gudis (08:56)

• "Our immune system is not well engineered for the environment of 2026... It's impossible for evolution to keep up with the rate of change in our environment."
  — Dr. David Gudis (07:49)

• "You’re not alone. You’re not imagining that it’s impacting your mood or your sleep or your overall well being or your ability to concentrate or focus... But there are very effective treatments and if the over the counter stuff doesn’t work, then definitely see a doctor. We can make it better."
  — Dr. David Gudis (14:55)

Timestamps for Important Segments

• 00:02 — The immune system’s role in allergy symptoms
• 01:39 — What is allergic rhinitis?
• 04:26 — Most common allergens in the U.S.
• 05:07 — How and why allergies worsen or appear over time
• 06:24 — Longer pollen seasons and higher pollen counts
• 07:49 — How modern lifestyles are making allergies more common
• 08:31 — Allergies’ impact on sleep, mental health, and cognitive function
• 09:37 — Practical avoidance strategies
• 10:29 — Effective over-the-counter treatments
• 11:34 — Next steps: allergy testing and immunotherapy
• 12:33 — NETI pots and nasal rinsing
• 13:13 — Differentiating allergies from infections and other conditions
• 14:55 — Final thoughts and encouragement for sufferers

Final Thoughts

Dr. Gudis reassures listeners that allergy symptoms are genuine, widespread, and impactful on day-to-day life—but also that modern medicine offers highly effective solutions. If standard self-care steps don't bring relief, medical interventions can help most people reclaim their well-being.

"We can make it better." (14:55)