8 Ways You're Making Your Seasonal Allergies Even Worse

Allergy season is getting longer and more severe. Avoid these mistakes that could cause your symptoms to flare up.

Medically reviewed in January 2020

For many people in the United States, the warmer, longer days of spring can’t come soon enough. But for tens of millions of people, early spring marks the beginning of yet another allergy season—and the sniffling, sneezing, itching, wheezing and overall frustration that comes with it.

In the U.S., those with seasonal allergies may contend with these irritating symptoms as early as February and they may linger until early summer. The main culprits triggering this misery are tree, grass and weed pollen. These yellowish powders fertilize plants and are spread by wind, insects and birds.

A rainy spring can help plants­­­—and mold—grow more quickly, causing allergy symptoms to linger for months. Milder winter temperatures can also cause plants to pollinate early, which means that spring allergy season is starting earlier and lasting longer.

And the problem is likely getting worse, not better. Pollen counts are expected to double by 2040, according to research presented at the 2012 Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology.

If you’re one of the millions affected by seasonal allergies, it’s important to make sure you’re doing all that you can to keep your symptoms under control. This includes being aware of all the ways you may be unintentionally making your allergies even worse.

Avoid these missteps, which could trigger a flare up of your symptoms.

Using the wrong air filter
Air filters can help purify the air and get rid of pollen in your home or office, but only if you choose the correct one.

There are two types of air cleaners: portable air cleaners and central furnace, or HVAC, filters. Portable air cleaners filter the air in one room, while central furnace filters treat air throughout an entire home. Inexpensive central furnace and air conditioning filters, however, don’t always do the trick. In fact, not replacing them often enough could make your allergies worse.

If you have a forced air heating or cooling system in your home, consider using high-efficiency filters and stick to a regular maintenance schedule. Placing a portable high-efficiency particulate air (HEPA) filter in your bedroom or using a dehumidifier can also help.   

Letting fresh air in
Spring air can be refreshing and invigorating, particularly after a long winter. But if you have spring allergies and open your windows, you’re not doing yourself any favors.

Open windows allow pollen-laden breezes to flow into your home. The pollen can then settle into your carpeting, furniture, bedding and upholstery, triggering pesky symptoms. During spring allergy season, you can avoid flare ups by opting for an air conditioner on hot days and keeping your house and car windows closed.

Hanging clothes outside to dry
Air-drying your wet sheets, towels and other laundry outside might be tempting. It is, after all, less expensive and more energy efficient than using a dryer. But your laundry will likely also be coated in pollen after drying in the afternoon breeze since pollen easily clings to fabric. And climbing into a bed with these “spring fresh” sheets or wrapping yourself in a towel that was hung outside to dry could make your allergy symptoms worse.

Skipping your evening shower 
After a long day, the last thing you may want to do before falling into your bed is take a shower and shampoo your hair. But you should. Not taking a shower before you go to sleep allows the pollen that’s accumulated on your body, hair and clothing to get into bed with you. This could not only make your symptoms flare up, but also prevent you from getting enough sleep. Make nightly showers part of your routine to remove pollen before bedtime.

Letting furry friends sleep in your bed
Sure, you love your pets, and snuggling up with them in bed can be cozy. But this tempting habit could be making your allergies worse. Pollen can settle into your pets’ fur, triggering symptoms. Keep your pets out of your bed, or better yet, keep them out of your bedroom altogether.

If your symptoms are particularly bothersome, restricting pets to certain rooms so they can’t wander can help reduce the spread of potential allergens. These steps may be helpful but they’re not foolproof. Allergens can still spread beyond the rooms that pets occupy. If you have pets and you also suffer from seasonal allergies, it’s also a good idea to bathe or groom them at least once a week.

Spending time outside on the wrong days
Heading outside when pollen counts are high is one way to trigger seasonal allergy symptoms. If you suffer from this misery, try to stay indoors on windy days and reserve your outside time until after it rains. Rain clears pollen, which helps to keep allergy symptoms at bay. If you have to do outdoor chores on a day with high pollen counts, always wear a NIOSH-rated 95 filter mask and take appropriate medication beforehand.

Putting off spring cleaning
The dust in your home may contain pollen as well as a cocktail of year-round allergens—pet hair and dander, mold and dust mites—that could make your allergies flare up. Taking the time to clean can help you enjoy spring rather than suffer through it.

If you have seasonal allergies, having someone else (who doesn’t have allergies) clean your home can help you avoid a flare up. If that’s not an option, be sure to wear a dust mask while you clean. It’s also a good idea to use a vacuum cleaner that has a HEPA filter and wash your bedding weekly.

Starting your medications too late
Waiting until you develop allergy symptoms to see your allergist or healthcare provider (HCP) is too late. You can stay several steps ahead of allergy season by taking your medication before it gets underway. Talk to your doctor about what treatment is appropriate for you and develop a plan of action to help ensure you avoid unnecessary flare ups. And be sure to see your allergist or HCP if your treatments aren’t working well enough and need to be adjusted.

Centers for Disease Control and Prevention. “Allergies and Hay Fever.”
American College of Allergy, Asthma & Immunology. “Allergic Rhinitis.”
UpToDate.com. “Allergic rhinitis: Clinical manifestations, epidemiology, and diagnosis.”
American College of Allergy, Asthma & Immunology. “The Year 2040: Double the Pollen, Double the Allergy Suffering?”
American College of Allergy, Asthma & Immunology. “What You Don't Know About Spring Allergies Can Cause You Misery.”
American College of Allergy, Asthma & Immunology. “Common Seasonal Allergy Triggers.”
American College of Allergy, Asthma & Immunology. “Are You Making Your Spring Allergies Worse?”
Environmental Protection Agency. “Air Cleaners and Air Filters in the Home.”
Mayo Clinic. “Seasonal allergies: Nip them in the bud.”
EnergyStar.gov. “Laundry Best Practices.”
Asthma and Allergy Foundation of America. “Protect Yourself From Pollen: Laundry.”
Asthma and Allergy Foundation of America. “What is a Pollen Allergy?”
American College of Allergy, Asthma & Immunology. “Pet Allergy.”
Centers for Disease Control and Prevention. “NIOSH-Approved N95 Particulate Filtering Facepiece Respirators.”
American College of Allergy, Asthma & Immunology. “Dust Allergy”

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