How to Deal With Fall Asthma and Allergies

Mother playing with son in pile of leaves
Raymond Forbes LLC/Stocksy United

People who have fall allergy and asthma problems often feel worse during the late summer and early autumn months. As vacations wind down and kids go back to school, they're dealing with sneezing, wheezing, and coughing once again.

Some people have to tackle allergy and asthma symptoms year-round because they're triggered by substances found in their everyday lives. Other people, however, only deal with symptoms at certain times of the year or in certain environments, like outdoors versus indoors. And while some have allergic asthma symptoms year-round, they find it gets much worse in the late summer and early fall when certain triggers are most present.

Common fall allergy and asthma symptoms can include:

  • Sneezing
  • Nasal stuffiness
  • Runny nose
  • Itchy, watery, burning eyes
  • Itchy mouth or throat
  • Wheezing
  • Coughing
  • Difficulty breathing
  • Tight feeling in the chest

Kids with asthma and allergies can typically experience "the allergic salute"— dark circles under their eyes as a result of nasal congestion. If symptoms are year-round, they may increase in fall as a result of the season's specific allergens.

Common Triggers

Seasonal allergies can occur at a variety of times and places depending on climate and location. When summer starts to wind down, harvest time begins and autumn leaves begin to change color and fall to the ground—chances are that fall allergy and asthma challenges are about to begin.

The most common early fall allergens, or triggers, are weed pollens. Toward the end of summer, around mid-August in most of the United States, weed pollen levels start to rise. They tend to be at their highest levels during late summer and fall. Some common weed allergens are:

  • Ragweed
  • Cockleweeds
  • Pigweed
  • Russian thistle
  • Sagebrush
  • Tumbleweed

Another type of allergen that is most active during the fall (although they can begin in late summer) are mold spores. Mold and its spores are a powerful allergen in people who have allergic asthma with sensitivity to mold.

Mold can grow both inside and out, so it can be an indoor asthma trigger as well as an outdoor asthma trigger. It's the outdoor type of mold, though, that causes the most allergy and asthma problems in the fall. The most common types of molds that are asthma triggers include:

  • Alternaria
  • Cladosporium
  • Aspergillus

Molds don't have a specific growing season as pollen does. Their growth is related more to environmental factors, such as heat, wind, and humidity, rather than a time of year. Since heat and humidity are often highest in the late summer/early fall, that's when mold spore levels are highest in many areas. In temperate climates, such as the southern United States and western United States coast, outdoor molds may be active year-round. Outdoor molds are found in piles of dead leaves, soil, vegetation, and rotting wood.

Diagnosis and Prevention

If you notice that your symptoms get worse during the autumn season, there's a good chance that you have fall allergies. See your doctor or allergist to find out for sure and learn about tests and treatment options to identify exactly what weeds or molds you may be allergic to.

Also, there are easy steps you can take to keep symptoms from interfering with your life, work, and school:

  • Research pollen and mold counts in your area. Many local weather forecasts will report on mold counts during this time of year as well as pollen counts. You can also check the National Allergy Bureau which reports both pollen and mold counts.
  • Stay indoors as much as you can when pollen and mold counts are high. On hot, humid or damp days, mold counts tend to be highest. Pollen counts are high on hot, dry, and windy days.
  • Keep the windows closed and the A/C on when you're inside or in the car. Turning on the A/C even when it's not hot out will keep mold spores as well as pollen from entering your home or car. The air-conditioning unit should be equipped with a HEPA filter.

Treatment and Medication

On top of your prescribed daily inhaled steroid and your rescue inhaler, there are plenty of other medications available to treat fall allergies and asthma:

  • Oral Antihistamines. Antihistamines work directly on the underlying allergic response and are sometimes combined with a decongestant. They are usually cheap, over-the-counter, and can cause drowsiness. General brands include Benadryl (diphenhydramine) and Chlortrimeton (chlorpheniramine). Nondrowsy alternatives include Claritin, Zyrtec, and Allegra (not over-the-counter).
  • Nasal decongestant sprays. These relieve nasal symptoms on a short-term basis. If overused, they can make nasal symptoms worseUse them with caution.
  • Nasal steroid sprays or nasal cromolyn sodium. Prescription nasal sprays, such as Flonase, are quite safe and effective, working only where needed.
  • Eye drops. Exercise caution when using drops, such as Visine Allergy, as they can further irritate symptoms. Natural tears type eye drops are the gentlest while Alaway or Zaditor are for more severe symptoms but still are over-the-counter. Prescription eye drops may also help.
  • Natural alternatives. The idea behind a saline nasal rinse/irrigation is to wash out molds, allergens, and mucus from the nasal passages with salt water (saline). This is both gentle and effective and available over-the-counter in most drug stores.
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  1. American College of Allergy, Asthma, & Immunology. Four things you might not know about fall allergies.

  2. American College of Allergy, Asthma, & Immunology. Allergy symptoms.

  3. American Academy of Family Physicians. Allergic rhinitis (allergies). Updated December 8, 2017.

  4. American College of Allergy, Asthma, & Immunology. Asthma symptoms.

  5. University of Rochester Medical Center. Pollen.

  6. Bozek A, Pyrkosz K. Immunotherapy of mold allergy: a review. Hum Vaccin Immunother. 2017;13(10):2397-2401. doi:10.1080/21645515.2017.1314404

  7. American Academy of Allergy, Asthma, & Immunology. Outdoor allergens.

  8. American Academy of Allergy, Asthma, and Immunology. AAAAI allergy and asthma drug guide.

  9. Antihistamines. Updated February 5, 2019.

  10. Flonase nasal spray. Updated February 2, 2020.

  11. American Academy of Allergy, Asthma, & Immunology. AAAAI allergy & asthma medication guide. Updated April 2018.

  12. Head K, Snidvongs K, Glew S, et al. Saline irrigation for allergic rhinitis. Cochrane Database Syst Rev. 2018;6:CD012597. doi:10.1002/14651858.CD012597.pub2