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Is your Christmas tree making you sick? What to know about Christmas tree syndrome symptoms & prevention

Pollens and mold are more common than you think.

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. Contact a qualified medical professional before engaging in any physical activity, or making any changes to your diet, medication or lifestyle.

For an unlucky few, decorating or touching a Christmas tree can pose a real health risk. (Photo via Getty Images)
For an unlucky few, decorating or touching a Christmas tree can pose a real health risk. (Getty Images)

Do you experience a stuffy nose or itchy skin when you string lights on your real Christmas tree? Do you find yourself reaching for your inhaler or cough drops more frequently over the holidays? If so, you could be allergic to your Christmas tree.

People who notice a flare-up in allergy symptoms at this time of year could experience what's known as Christmas tree syndrome — or Christmas tree dermatitis if you develop a rash.

And while 'tis the season to revel in the holiday spirit, for an unlucky few, decorating or touching a Christmas tree can pose a real health risk.


What is Christmas tree syndrome?

In 2019, an Australian woman suffered an allergic reaction to her tree that seriously derailed her holiday plans. Niki Waldegrave developed a painful rash while helping secure her family's Christmas tree to the hood of her car. The Sydney-based journalist told the New York Post she broke out in blisters on her forearms and hands as soon as she brought the seven-foot fir home.

"It was one of the worst feelings I've experienced in my life," Waldegrave said at the time. "We just put the tree on the top of the car and my arms started itching, but I didn't think about it too much."

It was one of the worst feelings I've experienced in my life.Niki Waldegrave via The New York Post

Initially, Waldegrave attributed the discomfort as eczema or allergies, which she's had her entire life. It wasn't until the family began decorating the tree that the pain worsened and she began developing hives and open blisters.

"By the time I got to bed, I was covered from head to toe in angry red welts," she recalled.

After showering and taking antihistamines, Waldegrave decided to head to hospital when she began wheezing, and bleeding onto her bedding. Doctors gave the 39-year-old stronger antihistamines and steroids which helped to lessen the swelling on her arms, legs and face.

But how common are these allergies? Read on for everything you need to know about handling Christmas trees safely.


Signs and symptoms of a Christmas tree allergy

Dad and daughter shopping for a Christmas tree
Approximately seven per cent of people experience an allergic reaction when exposed to coniferous trees like pine, fir and spruce, (Photo via Getty Images)

According to a study published in the Canadian Medical Association Journal, approximately seven per cent of people experience an allergic reaction when exposed to coniferous trees like pine, fir and spruce.

The majority of sufferers experience symptoms such as:

  • wheezing

  • sneezing

  • skin rashes

These usually develop within the first 24 hours of exposure, but others can develop a reaction after several days.

Researchers believe although scrapings from pine and spruce trees revealed high traces of mould, no mould had become airborne in test environment. Tree pollens and balsam oils are believed to be the cause of Christmas tree syndrome symptoms.

While the most obvious answer might be to simply use an artificial tree, you might not be in the clear in terms of allergy symptoms.


Why your fake Christmas tree can also cause allergies

Experts say artificial trees, especially those stored in damp or humid spaces, can also become a breeding ground for mold and dust.

A U.S. allergist told USA Today, "fake Christmas trees are more likely to contain dust mites, insect droppings and possibly mold." Dr. Zachary Rubin explained it's all about how you store your fake tree, adding that putting it in a garbage bad, for example, "may invite critters" or "promote mold growth," according to USA Today.

However, he added pollen and pesticides won't be an issue with fake trees.


How to prevent Christmas tree allergies

Cute little girl reaches up and carefully places a gold glittery bauble on the Christmas Tree. Festive and warm image with space for copy.
Cute little girl reaches up and carefully places a gold glittery bauble on the Christmas Tree. Festive and warm image with space for copy.

If you're opting for a real Christmas tree, ask the retailer to shake the tree for any loose debris, dust or mold.

For both coniferous and artificial trees that aren't pre-lit, consider hosing off the tree outside and allow it to dry before bringing it inside to decorate. Also, consider upgrading your tree storage to a container rather than a cardboard box to help prevent dust and mold from collecting throughout the year.

To help minimize your risk of allergic reaction, wear long clothing or gloves when decorating or handling the tree, or if possible have a friend or family member help you decorate to minimize your contact with the tree.

Air purifiers strategically placed around the room can also help reduce any allergens that may cause irritations.

Additionally, a 2016 report revealed it's not just Christmas trees that could be harmful. Poinsettia, perfumed candles, Christmas cactus, frankincense, myrrh and other seasonal pollens could all pose a rare but possible allergy risk.

Keeping antihistamines and cortisone creams handy during the holidays can help reduce symptoms of these less-than-festive allergies.

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