Allergies can cause fatigue indirectly by hampering your ability to sleep, Tirumalasetty said. A blocked nose or mild wheezing can prevent you from falling asleep, or you might startle awake with coughing fits. Congestion can also create a lot of pressure in the upper airways that can make you tired, said Dr Joyce Yu, a paediatric allergist and immunologist at Columbia University Irving Medical Centre. “It sends a signal to your brain and says, ‘Hey, I’m exhausted,’ " she said.
A key sign that your fatigue may be caused by allergies is if you have other allergy symptoms at the same time, Tirumalasetty said. These include itchiness in the eyes, ears, nose and throat, as well as sneezing, coughing, runny nose, watery eyes, a slight wheezing or whistling when you breathe, postnasal drip and skin rashes or hives.
But “if you’re not a coughing, wheezing, sniffling, snotty person, then you probably don’t really have allergies, and your fatigue may be due to something else,” Yu said.
Common health conditions that can cause fatigue include depression, iron deficiency, thyroid problems and sleep apnea, said Dr Nina Mingioni, a professor of medicine at Thomas Jefferson University in Philadelphia.
Respiratory infections like the common cold or even Covid-19 can cause fatigue too, Tirumalasetty said, along with other common allergy symptoms like a cough, headache and stuffy or runny nose. But the main symptoms that would distinguish allergies from these other conditions are itchiness in the nose, eyes and ears. If you have an upper respiratory infection, you might also have a fever, sore throat, swollen glands and muscle aches — which are not really associated with allergies, Yu said.
The duration of your symptoms can be another giveaway for what you have, Tirumalasetty said. “Your average cold is going to clear within two weeks,” she said, so if you’re feeling off for weeks or months on end, your symptoms are more likely a result of allergies.
Medications can alleviate allergy symptoms, but beware of daytime drowsiness
Because fatigue is a symptom and not a medical condition itself, Mingioni said, there is no specific treatment for it. So to address fatigue, you “pretty much always have to address the underlying problem.”
If sinus pressure from congestion is making you tired or causing other symptoms like a headache, you can treat it with over-the-counter allergy medications such as oral antihistamines, Yu said. But they do come with some pros and cons.
Oral allergy medications are effective at alleviating symptoms like congestion, itchiness and sneezing, but a significant downside is that many cause drowsiness, Tirumalasetty said. First-generation oral antihistamines, like Benadryl (diphenhydramine) or Atarax (hydroxyzine), are more likely than second-generation antihistamines, like Claritin (loratadine) or Zyrtec (cetirizine), to cause drowsiness, Yu said.
And even the ones that are labelled “nondrowsy” can still cause some sleepiness for some people, Tirumalasetty said, so it may take some trial and error to find the allergy medication that works for you.
That being said, Yu added, “it’s definitely much more beneficial to treat your allergies than to try to avoid the medications because of fear of sedation” — at least in her own experience treating patients. And if your symptoms are causing fatigue by keeping you up at night, the drowsiness from the medications might work in your favour.
Still, there are alternatives to oral medications that can help alleviate allergy symptoms, Yu said, including saline nasal sprays or rinses and antihistamine or saline eye drops.
Track your triggers
Identifying the patterns in your symptoms can help you prepare for allergy season, Yu said. For example, if you know that fatigue and other allergy symptoms typically occur during the spring, you can start gathering your medications a few weeks or months ahead.
“I think keeping a diary is really helpful,” Tirumalasetty said, whether that’s tracking your symptoms in the calendar on your phone or jotting them down in a notes app or a physical notebook. An example entry might be something like, “I was at my brother’s house and they’ve got six cats, and now I feel itchy and tired,” she said.
If you know which allergens are problematic for you, you can also see how bad pollen levels across the country are on a given day using online trackers. Those from the American Academy of Allergy, Asthma and Immunology or Pollen.com can be useful, Tirumalasetty said. When pollen levels are high, you might take a preventive step, such as taking an antihistamine, before going outside, she said.
Another key strategy for minimizing allergy symptoms is to “allergy-proof your house,” Tirumalasetty said. If you’re allergic to dust mites, you might use hypoallergenic bedding or “allergy-proof” mattress, pillow and duvet covers that stop dust mites from getting into your bedding and help minimize symptoms, she said. To prevent dust and other possible irritants from accumulating, Tirumalasetty said, make sure to “wash your sheets once a week.” Try to avoid any animals you may be allergic to, and if you have seasonal allergies, showering after you’ve been outside and cleaning those worn clothes will help you avoid tracking too much pollen or other allergens into your home.
When dealing with fatigue from any cause, Mingioni said, it’s important to prioritize the habits that promote quality rest, such as going to sleep and waking up at the same times each day, “keeping bedrooms free of distractions” and limiting cellphone use before bed. Rest is crucial for managing health concerns, she added, whether they’re from stress, a cold or allergies.
This article originally appeared in The New York Times.
Written by: Hannah Seo
©2023 THE NEW YORK TIMES
