What causes seasonal allergies

What causes seasonal allergies

Well, it’s technically *always* allergy season due to year-round offenders such as dust mites, mold, and pet dander, says Purvi Parikh, MD, an allergist and immunologist with Allergy & Asthma Network. But some allergens–pollens, specifically—are seasonal.

Jewelyn Butron

Tree pollen, for example, pops up in the spring (generally in tardy March to April), grass pollen arrives in the tardy spring (around May), weed pollen is most prevalent in the summer (July to August), and ragweed pollen takes over from summer to drop (late August to the first frost), says Dr.

What causes seasonal allergies

Parikh.

And even worse news: Climate change means allergy season begins earlier and lasts longer, adds Corinne Keet, MD, PhD, a professor and allergist at Johns Hopkins University School of Medicine.

To get super-specific, Pollen.com has a National Allergy Map that provides an up-to-date allergy forecast in diverse areas around the country and an Allergy Alert app that gives five-day forecasts with in-depth info on specific allergens, helping you decide if you should stay indoors that day.

Certain areas own also seen a particularly large increase in pollen during allergy season. In 2019, the New York Times reported on the extreme blankets of pollen that hit North Carolina; Georgia and Chicago also faced especially aggressive allergy seasons too.

What causes seasonal allergies

In Alaska, temperatures are rising so quickly (as in numerous other far northern countries), that the pollen count and season duration are seeing unprecedented growth.


When to see a GP

Visit a GP if the symptoms of allergic rhinitis are disrupting your sleep, preventing you carrying out everyday activities, or adversely affecting your performance at work or school.

A diagnosis of allergic rhinitis will generally be based on your symptoms and any possible triggers you may own noticed.

If the cause of your condition is uncertain, you may be referred for allergy testing.

Find out more about diagnosing allergic rhinitis


What does that mean for my allergy meds?

When should I start taking them?

There’s no point in waiting until you’re miserable to take allergy meds, especially if you desire to hold up your outdoor workouts.

In fact, allergists recommend you start taking meds a couple weeks before allergy season arrives, or, at the latest, take them the moment you start having symptoms, says Dr. Parikh.

What causes seasonal allergies

Taking them early can stop an immune system freak-out before it happens, lessening the severity of symptoms, he adds. Check out the National Allergy Map to figure out when to start taking meds depending on where you live.

As for which allergy meds to take, if you’re seriously stuffed, start with steroid nasal sprays such as Flonase or Rhinocort, which reduce inflammation-induced stuffiness, says Dr. Keet. And if you’ve got itching, sneezing, and a runny nose, too, glance for non-sedating antihistamines such as Zyrtec, Xyzal, or Allegra, she adds.

Just remember: While OTC allergy meds suppress symptoms, they don’t cure the problem, so they may be less effective if your allergies are worsening, notes Dr. Parikh.


What causes allergic rhinitis

Allergic rhinitis is caused by the immune system reacting to an allergen as if it were harmful.

This results in cells releasing a number of chemicals that cause the inside layer of your nose (the mucous membrane) to become swollen and too much mucus to be produced.

Common allergens that cause allergic rhinitis include pollen (this type of allergic rhinitis is known as hay fever), as well as mould spores, home dust mites, and flakes of skin or droplets of urine or saliva from certain animals.

Find out more about the causes of allergic rhinitis


Symptoms of allergic rhinitis

Allergic rhinitis typically causes cold-like symptoms, such as sneezing, itchiness and a blocked or runny nose.

What causes seasonal allergies

These symptoms usually start soon after being exposed to an allergen.

Some people only get allergic rhinitis for a few months at a time because they’re sensitive to seasonal allergens, such as tree or grass pollen. Other people get allergic rhinitis every year round.

Most people with allergic rhinitis own mild symptoms that can be easily and effectively treated.

What causes seasonal allergies

But for some people symptoms can be severe and persistent, causing sleep problems and interfering with everyday life.

The symptoms of allergic rhinitis occasionally improve with time, but this can take numerous years and it’s unlikely that the condition will vanish completely.


What can I do if my allergy meds aren’t working…or my allergies are getting worse?

If you’re already taking OTC allergy meds (and, you know, keeping your windows closed and washing your face and hair after coming inside), allergy shots, a.k.a.

allergen immunotherapy, make your immune system less reactive to allergens (read: pollen), and for some people, they can even induce a cure, says Dr. Parikh.

“By giving little increasing doses of what you are allergic to, you train the immune system to slowly stop being as allergic,” she says. “This is the best way to address allergies, as it targets the underlying problem and builds your immunity to a specific allergen.”

The downside?

What causes seasonal allergies

Allergy shots are a bit of a time commitment. You’ll need to get them once a week for six to eight months, then once a month for a minimum of two years, says Dr. Parikh. You need to be a little bit patient, too, because it can take about six months to start feeling better (so if you desire protection by March, you’ll probably own to start in September the year before). But a life without allergies? Sounds worth it to me.

Cassie ShortsleeveFreelance WriterCassie Shortsleeve is a skilled freelance author and editor with almost a decade of experience reporting on every things health, fitness, and travel.

Kristin CanningKristin Canning is the health editor at Women’s Health, where she assigns, edits and reports stories on emerging health research and technology, women’s health conditions, psychology, mental health, wellness entrepreneurs, and the intersection of health and culture for both print and digital.

Allergic rhinitis is inflammation of the inside of the nose caused by an allergen, such as pollen, dust, mould or flakes of skin from certain animals.

It’s a extremely common condition, estimated to affect around 1 in every 5 people in the UK.


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