This mom and RN is warning parents about a little known flu symptom

Add this to your list of things to look out for.

During this particularly nasty—and potentially deadly—flu season, it’s important to take preventive measures and know the signs of the disease. One mom and registered nurse is doing her part by spreading the word about a more obscure symptom that parents may not know about.

Brodi Willard, from Blair, NE, recently noticed that her son Seb came home from school with hives. She initially thought it must be some sort of reaction so she tried giving him a new set of clothes and a bath, but the hives remained.

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2018 flu season in the US
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2018 flu season in the US
Emergency room nurse Kathy Nguyen wears a mask as deals with flu patients at Palomar Medical Center in Escondido, California, U.S., January 18, 2018. REUTERS/Mike Blake
Emergency room nurse Christine Bauer treats Joshua Lagade of Vista, California, for the flu as his girlfriend Mayra Mora looks on in the emergency room at Palomar Medical Center in Escondido, California, U.S., January 18, 2018. REUTERS/Mike Blake
Emergency room nurse Christine Bauer treats Joshua Lagade of Vista, California, for the flu in the emergency room at Palomar Medical Center in Escondido, California, U.S., January 18, 2018. REUTERS/Mike Blake
Doug Hasselo, 87 of Carlsbad, California, is treated for the flu by float nurse Nellie Reyes in the emergency room at Palomar Medical Center in Escondido, California, U.S., January 18, 2018. REUTERS/Mike Blake
Joshua Lagade of Vista, California, gets an IV from emergency room nurse Christine Bauer at Palomar Medical Center in Escondido, California, U.S., January 18, 2018. REUTERS/Mike Blake
Emergency room nurse Richard Horner wears a mask as he deals with flu patients at Palomar Medical Center in Escondido, California, U.S., January 18, 2018. REUTERS/Mike Blake
A doctor hold a syringe as part of the start of the seasonal influenza vaccination campaign in Nice, France October 24, 2017. REUTERS/Eric Gaillard
Boxes of vaccines against the flu are seen as part of the start of the seasonal influenza vaccination campaign in Nice, France October 24, 2017. REUTERS/Eric Gaillard
PORTLAND, ME - DECEMBER 29: Troy Ali, 21 of Portland receives a flu shot from Greater Portland Health medical assistant Anissa Millette at the clinic in Franklin Towers on Cumberland Ave on Friday, December 29, 2017. (Staff Photo by Carl D. Walsh/Portland Press Herald via Getty Images)
SAN FRANCISCO, CA - JANUARY 22: Vials of the Fluvirin influenza vaccine are displayed at a Walgreens phramacy on January 22, 2018 in San Francisco, California. A strong strain of H3N2 influenza has claimed the lives of 74 Californians under the age of 65 since the flu season began in October of last year. People are being encouraged to get flu shots even through the vaccine has been only 30% effective in combating the influenza. (Photo by Justin Sullivan/Getty Images)
SAN FRANCISCO, CA - JANUARY 22: A sign advertising flu shots is displayed at a Walgreens phramacy on January 22, 2018 in San Francisco, California. A strong strain of H3N2 influenza has claimed the lives of 74 Californians under the age of 65 since the flu season began in October of last year. People are being encouraged to get flu shots even through the vaccine has been only 30% effective in combating the influenza. (Photo by Justin Sullivan/Getty Images)
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After contacting her pediatrician, she learned other local kids also had hives and tested positive for the flu. Sure enough, Seb tested positive for Influenza B—even though he didn’t display any other symptoms, like a fever or a runny nose.

Brodi took to Facebook to share her story and warn other people about this little-known symptom. She also included a photo of her son’s hives on his arm. Since being published, her post has been shared over 200,000 times.

“I didn't realize it was going to go as viral as it did on the web, and I even saw some comments of people saying ‘yes my child had hives and they also tested positive for Influenza B,’” she said in an interview with local news station WOWT.

Since being diagnosed, Seb is feeling much better. “They put him on the Tamiflu, and he's been fine,” Brodi said. “He's still playing and running around.”

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20 mistakes that are making your home unhealthy
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20 mistakes that are making your home unhealthy

1: Not Keeping a Barrier Between You and Your Bedding

Use zippered dust-proof casings for pillows and mattresses. The pore space of such casings is so small that dust mites and their waste products can't get through.

2: Vacuuming Without a HEPA Filter

Use HEPA (high-efficiency particulate air) filters to prevent tiny particles of dust from being blown back out into the air.

3: Forgetting to Change the Vacuum Filter

Changing the filter is an essential part of keeping dust out of the air and preserving the life of the machine. Change the filter once it's showing wear and tear or every six months if you're using a HEPA filter.

4: Forgetting to Change the AC Filters

Never run your heating or air conditioning system without filters, and be sure to change them at least every three months.

5: Not Ventilating Your Bathroom

Running the exhaust fan (and making sure it's vented to the outdoors) helps remove moisture from this naturally humid room.

6: Not Attending to Your Gutters

Leaky gutters can cause excessive moisture to enter your basement or crawl space. If you don't have covered gutters, frequent litter removal is a must year round.

7: Too Many Textiles in the Bedroom

Carpeting, rugs, pillows, upholstered headboards and chairs are all dust catchers. Consider minimizing furnishings for an easier-to-dust environment.

8: Too Many Textiles in Your Living Area

The living room is the same as a bedroom. Keep upholstery to a minimum to reduce the amount of dust mites.

9: Inviting Allergens Into Your Yard

Avoid plants that are wind-pollinated — grasses are among the worst pollen offenders.

10: Not Following Your Nose

If you detect a musty smell in your home, inspect closely until you find the source of the smell. The sooner you find the mold, the easier it will be to remove.

11: Not Organizing Your Home Office

Clutter can harbor a plethora of dust mites — this includes stacks of papers, old magazines and office equipment. File paper inside a cabinet to stay organized and keep dust away.

12: Wearing Shoes Inside the House

Not only is wearing shoes indoors a health risk, but it can also increase allergens. Wet leaves bring in mildew and pollutants from grass get trapped on the bottom of shoes. Take your shoes off outside, or put them in a washable tray as soon as you walk in the door.

13: Letting the Trash Pile Up

You could attract some unwanted guests (like mice and roaches) inside your home if you let your trash pile up. Their droppings can worsen your allergies, so make sure you stick to a routine of taking out the trash.

14: Displaying Houseplants

You may enjoy your beloved fern, but houseplants encourage mold growth. Mold spores live in warm, wet dirt, so limit the amount and time you display them.

15: Letting Your Pet Sleep in Your Bed

Your favorite part of the day may be snuggling up to your fur baby, but pet dander traps allergens — which means you're inviting those allergens to your bed. If you can't resist the cuddles, then you should completely shave your dog. Just kidding — just be sure to bathe them once a week.

16: Keeping the Temp Too High

Dust mites and mold love to live in warm climates. Keep your thermostat around 70 degrees to help keep them at bay.

17: Installing Wallpaper in the Bathroom

Patterned wallpaper is a beautiful addition to any room, but installing it in wet rooms (bathrooms and kitchens) can increase the risk of mildew. Opt for tile or textured paint that's mold-resistant.

18: Not Using the Exhaust Fan When Cooking

If you love cooking, all that steam from the stovetop will produce excess moisture. Turn the exhaust fan on to reduce it, helping to decrease the chance of mold.

19: Ignoring Your Bathmat

Think about it. You step onto your bathmat completely wet on the daily. To keep it fresh (and to keep mildew away), hang it to dry after every use, and stick it in the washer once a week.

20: Avoiding Protective Wear While Gardening

Even if you aren't highly allergic to pollen, it can still irritate your eyes, nose and throat. To prevent this, always wear a mask and gloves while working in the yard.

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Brodi closed her post by urging parents to check for hives and stay vigilant for other symptoms for the rest of this flu season.

“Please keep watch on your children so if they develop hives, please call your pediatrician,” she wrote. “I have never heard of this symptom, but it is obviously something to be on the lookout for.”

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