Show 1475: Your Allergy Survival Guide: What Works, What Doesn’t, What’s Risky

You may think of allergies as causing sniffly noses and congestion in the spring or fall. But allergies can go far beyond that. As Dr. Kari Nadeau points out in this episode, allergies can affect us from head to toe, including eyes, nose, throat, lungs, sinuses, skin and gut. In the most dangerous instances, the whole body is threatened with an anaphylactic reaction. That’s a medical emergency! One in three Americans will develop allergies at some point in our lives, so it’s important to know what works to control them. At The People’s Pharmacy, we strive to bring you up to date, rigorously researched insights and conversations about health, medicine, wellness and health policies and health systems. While these conversations intend to offer insight and perspective, the content is provided solely for informational and educational purposes. Please consult your healthcare provider before making any changes to your medical care or treatment. How You Can Listen You could listen through your local public radio station or get the live stream at 7 am EST on Saturday, June 6, 2026, through your computer or smart phone (wunc.org).  Here is a link so you can find which stations carry our broadcast. (Welcome, Huntsville, Alabama!) If you can’t listen to the broadcast, you may wish to hear the podcast later. You can subscribe through your favorite podcast provider, download the mp3 using the link at the bottom of the page, or listen to the stream on this post starting on June 8, 2026. What Are Allergies? We begin our discussion of your allergy survival guide with an explanation of what is happening during an allergic reaction. The immune system perceives some foreign compound, usually a protein, as dangerous even though normally it would not be. So it reacts by trying to flush the invader out by producing extra mucus. The turbinate sinuses can make one to two gallons of mucus a day, and naturally, it has to go somewhere. That’s why you might be congested. Having all that mucus in the sinuses can also encourage bacterial growth, so if the allergic reaction persists, some people have to deal with sinus infections. Emergency Treatment In determining what works, you need to know the nature of the reaction. If you have two or more organs involved, if you are having trouble breathing or if you feel dizzy, you may be in the midst of an anaphylactic reaction. What works for that is an epinephrine injection and immediate medical attention. This is potentially life-threatening, so you will want to figure out what triggered the reaction so you can avoid it in the future. Once someone has suffered one anaphylactic reaction, they should keep epinephrine with them at all times in case of another episode. Epinephrine comes as a self-injector pen or a nasal spray (neffy). Can You Spot Drug Allergies? In the warnings that are rattled off as part of a TV ad for a pricey new drug, we often hear viewers cautioned not to take the medicine if they are allergic to it. That sounds like simple common sense, but it also has a Catch 22 quality. How do you know you are allergic to a medication unless you take it–and experience an allergic reaction for which you might need treatment. Most of these presumably are immune system-mediated reactions, in which the body produces IgE. That is how allergies to penicillin or sulfa drugs work. Some drugs cause a different type of reaction, not IgE-mediated but dangerous nonetheless. Lisinopril is the most commonly prescribed blood pressure medicine in this country. Like other ACE (ACE is short for angiotensin-converting enzyme) inhibitor medications, lisinopril can trigger angioedema. This swelling can affect the face, lips, tongue and throat, where it can compromise breathing. The most insidious aspect of this reaction is that it can occur after the person has been taking the drug without problems for weeks, months or even years. “Red man syndrome” or infusion reactions in people taking vancomycin can likewise occur without warning. The last type of drug reaction is not actually an allergy at all, although people occasionally use that terminology. It is better described as sensitivity. For example, a stomachache is a common reaction to the antibiotic erythromycin. Some people are disabled by this abdominal pain and try to limit their exposure to erythromycin thereafter. What Works and What Doesn’t? Since the immune system is acting inappropriately to cause allergic reactions, treatment should involve immunotherapy. Eye drops can help eyes feel less itchy and irritated. Likewise, OTC nose d