This allergy
season could be worse than those of past years in the U.S., heavy
snow and rain in many places, followed by a sudden shift to warm
weather, have led to a profusion of tree pollen and mold.
A new study
in the Proceedings of the National Academy of Sciences shows
a link between warming temperatures and a longer ragweed pollen
season. According to researchers led by Lewis Ziska of the U.S.
Department of Agriculture, the ragweed season is now 27 days longer
in the northernmost areas of North America, largely because winter
starts later and ends earlier, extending the time for pollen-bearing
plants to thrive. It's not the first piece of research to make
the claim that global warming will worsen allergies, but it's
the most detailed and it's peer-reviewed.
In general,
allergy seasons have been getting longer and more challenging,
although pollen counts and allergy attacks vary widely from region
to region.
Yahoo News
reports:
"...
[E]verything is ripe this year for a historic season. It's been
an exceptionally rainy spring in much of the country, with several
states east of the Mississippi River setting records for the wettest
April since 1895 ... In Los Angeles, rain, a heat wave and the
Santa Ana winds combined for a brutal stretch in February."
Sources:
Dr. Mercola's
Comments:
If you're
a seasonal allergy sufferer, you know that few things can drain
the joy out of summertime like the misery of red, itchy eyes,
continuous sneezing and post-nasal drip. Airborne pollen is the
most common cause of seasonal allergies, also known as hay fever
or allergic rhinitis. Allergies can mean more than general misery
for asthma sufferers, whose bouts can be much worse during allergy
season even life-threatening, in some cases. Allergy-driven
asthma affects 10 million Americans, rates that have doubled
since 1980.
I will discuss this in greater detail below, but there is
a technique called provocation neutralization (PN) that offers
many allergy sufferers permanent relief with virtually no side
effects. The success rate for this approach to treating allergies is
about 80 to 90 percent, and you can receive the treatment at home.
Pollen from trees, weeds and grasses are the primary culprits
behind seasonal allergies. Spring allergies are typically from
tree pollen, whereas summer allergies usually come from grasses,
and then weed pollens dominate the airways during late summer
and fall. Without allergy testing, it's nearly impossible to determine
which offenders are causing your wheezes and sneezes, but the
time and season may give you some clues. If you've noticed your
allergies seem to be getting worse lately, you're not the only
one.
Evidence
Climate Change is Making Allergies Worse
There are
now a number of studies linking
changes in climate with increasingly long and severe allergy seasons.
In fact, springtime is arriving 10 to 14 days earlier than it
did 20 years ago, which results in higher pollen levels for longer
periods of time. A
new USDA study published in the Proceedings of the National
Academy of Health Sciences confirms that hay fever season
is becoming more intense and lasting longer. How do altered weather
patterns contribute to allergies?
Clifford
Bassett, MD, medical director of Allergy and Asthma Care of New
York sheds some light on this by using the example of ragweed,
a very common allergen. Under normal circumstances, a single ragweed
plant produces 1 million pollen grains. However, a CO2-rich environment
boosts that number to 3 to 4 million grains. And ragweed is only
ONE of the weed species making you miserable there are
many others that scientists expect to become "supercharged" by
Earth's warming climate.
But here
is something you probably don't associate with allergies: thunderstorms.
Stanley Fineman,
MD (president of the American College of Allergy, Asthma, and
Immunology) reports that quite
a few studies have linked thunderstorms to a greater incidence
of asthma-related hospitalizations. The phenomenon even has
a name it's called "thunderstorm
asthma," and physicians believe it has something to do with
all the pollen and dust that thunderstorms stir up. Thunderstorms
appear to be increasing in both frequency and severity. These
trends are not likely to reverse themselves anytime soon, so it's
time to arm yourself with some effective allergy fighters if you
are one of the 60 million Americans afflicted.
How and
Why Do Allergies Develop?
Allergies
are your body's reaction to allergens (particles your body
considers foreign), a sign that your immune system is working
overtime. The first time your body encounters an allergen, your
plasma cells release IgE (immunoglobulin E), an antibody specific
to that allergen. IgE attaches to the surface of your mast cells.
Mast cells are found in great numbers in your surface tissues
(i.e., those with close proximity to the external environment,
such as in your skin and in the mucous membranes of your nose),
where they help mediate inflammatory responses.
Mast cells
release a number of important chemical mediators, one of which
is histamine.
So, the second
time your body encounters a particular allergen, within a few
minutes the mast cells become activated and release a powerful
cocktail of histamine, leukotrienes, and prostaglandins, which
trigger the entire cascade of symptoms you associate with allergies:
sneezing, runny nose, sore throat, hacky cough, itchy eyes, etc.
Histamine can cause your airways to constrict, like with asthma,
or cause blood vessels to become more permeable, leading to fluid
leakage or hives.
Leukotrienes
cause hypersecretion of mucus, which you commonly experience as
a runny nose or increased phlegm.
Pollen is
an extremely common mast cell activator, but other agents can
trigger these processes as well. Mold
spores, dust, airborne contaminants, dust mites, pet
dander, cockroaches, environmental chemicals, cleaning products,
personal
care products and foods can all cause allergic reactions.
Every person is different in what he or she reacts to. And, just
because you haven't reacted to something in the past doesn't mean
you won't react to it in the future you can become sensitized
at any point in time.
The good
news is, many people "outgrow" their seasonal allergies by the
time they reach the age of 60 to 70, when their immune systems
become less reactive.
Besides pollen,
household
chemicals such as triclosan and bisphenol-A (BPA) can aggravate
or even cause allergies. Scientists from the University of
Michigan recently found that people who commonly used triclosan
products were more likely to suffer from allergies or hay fever.
This is why it is NOT a good idea to use antibacterial
soap which leads us right into one of the theories
about why allergies have become such a problem today.
How a Cleaner
Home May Actually WORSEN Your Allergies
Could your
meticulous housekeeping be making you and your family's allergies
worse? Proponents of the Hygiene
Hypothesis would say, "Yes!" Experts estimate that many allergies
and immune-system diseases have doubled, tripled or even quadrupled
in the last few decades. Some studies indicate more than half
of the U.S. population now has at least one allergy.
Many researchers
suspect the increase in immune-related diseases is rooted in our
preoccupation with germ-free, dirt-free environments. As society
in general becomes more "sterile," our
immune systems have become increasingly unable to differentiate
between real threats and harmless things like pollen and dust-bunnies.
Meanwhile, you're exposed to antibiotics and pasteurized foods,
which contain none of the bad or good bacteria that were once
part of everyday life and helped stimulate robust immune function.
Children
don't play outside in the dirt like they used to, so are not being
afforded the opportunity to develop healthy immune responses,
and allergies and autoimmune diseases are the result. Numerous
studies have provided very compelling evidence that your body
actually benefits from regular exposure to dirt. Add to this the
predominant junk
food diet of the West, and you have a real recipe for a wimpy,
confused immune system.
Allergies
may be far more predominant than is widely appreciated, and they
may even underlie many common diseases.
Doris Rapp,
MD, a pediatric allergist and environmental medical specialist,
believes there's a good chance that allergies
of all sorts are to blame for the majority of unexplained illnesses.
You could be allergic to just about anything, and it could be
causing a dizzying array of symptoms that you might not even suspect
are related. So, what can be done to ease your allergy angst?
It turns out quite a lot!
Provocation
Neutralization Allergy Treatment is Nothing to Sneeze At
Addressing
allergies takes a multi-faceted approach that involves optimizing
your diet and avoiding potential triggers. Typically, people
anticipating the misery of allergy season arm themselves with
a variety of antihistamine pills, nose sprays and eye drops. But
these drug treatments come with their own set of side effects,
and relief is short lived. And it's been my experience that conventional
allergy testing, whether done through the blood or skin, works
for only 20 to 30 percent of patients. It is also quite inconvenient,
as you need to go to the doctor's office every week for months
or years, and it can take several years to be effective.
Provocation
neutralization (PN) allergy testing and treatment offers many
allergy sufferers permanent relief without adverse side effects.
The success rate for this approach is about 80 to 90 percent,
and you can receive the treatment at home.
Provocation
refers to "provoking a change" and neutralization refers to "neutralizing
the reaction caused by provocation." During provocation-neutralization,
a small amount of allergen is injected under your skin to produce
a small bump called a "wheal" on the top layers of your skin,
and then it is monitored for a reaction. If you have a positive
reaction, such as fatigue, headache, or a growth in the size of
the wheal, then the allergen is neutralized with diluted injections
or with drops that go in your mouth of the same allergen. If you
are interested in pursuing PN, the American
Academy of Environmental Medicine (AAEM) has a list of physicians
and offices that are trained in this technique.
Natural
Treatments: Dietary Friends and Foes
About one-third
of seasonal allergy sufferers have something called "oral
allergy syndrome," in which your immune system is triggered
by proteins in some foods that are molecularly similar to pollen.
Your immune system looks at the protein molecule and says, "Close
enough!" and attacks it. If you are allergic to ragweed, for example,
you may have cross-sensitivity to melons, bananas, tomatoes, zucchini,
sunflower seeds, dandelions, chamomile, and echinacea. If you
have a grass allergy, you may also react to peaches, celery, tomatoes,
melons and oranges.
Besides avoiding
foods that may trigger your allergy, there are a number of foods
that can be helpful for calming down allergy symptoms.
Consider
the following:
- Omega-3
fatty acids: According to Mother
Earth News, a German study published in the journal Allergy
found people who have diets rich in of omega-3 fatty acids suffer
from fewer allergy symptoms. A
second study in Sweden found that children who regularly
ate fish prior to age one had much lower allergies by age four.
My favorite sources of omega-3 fatty acids are grass fed meat
and eggs, and krill oil. (Fish has become too contaminated to
rely on as a staple.)
- Probiotics:
In a 2008 study, researchers discovered that people who took
probiotics throughout allergy season had lower levels of an
antibody that triggered allergy symptoms. They also had higher
levels of a different antibody (IgG), thought to play a protective
role against allergic reactions. Other
researchers found evidence that giving probiotics to newborns
and mothers-to-be may help prevent childhood allergies.
- Vitamin
D: Insufficient
vitamin D levels have been linked to more severe asthma and
allergies in children. Vitamin D has also been found to
reduce allergic responses to mold.
- Hot
peppers: Hot chili peppers, horseradish, and hot mustards
work as natural decongestants. In fact, a nasal spray containing
capsaicin (derived from hot peppers) significantly reduced nasal
allergy symptoms in a 2009 study.
- Locally
produced honey: Many believe that consuming locally produced
honey, which contains pollen spores picked up by the bees from
your local plants, can act as a natural “allergy vaccine.” By
introducing a small amount of allergen into your system (from
eating the honey), your immune system is activated and over
time can build up your natural immunity against it. Just be
careful to consume honey moderately as it’s high in fructose.
Below are
several other foods and herbs you might want to try:
- Quercetin:
Quercetin is an antioxidant that belongs to a class of water-soluble
plant substances called flavonoids. Although research is sketchy,
many believe quercetin-rich foods (such as apples, berries,
red grapes, red onions, capers and black tea) prevent histamine
release so they are “natural antihistamines.” Quercetin
is also available in supplement form a typical dose for
hay fever is between 200 and 400 mg per day.
- Butterbur
(Petasites hybridus): Another natural antihistamine,
this herb has been used since ancient times to treat a variety
of conditions, including migraines. In
a German study, 40 percent of patients taking butterbur
root extract were able to reduce their intake of traditional
asthma medications. A British study found butterbur as effective
as the drug Zyrtec.
A word of caution is needed, however. Butterbur is a member
of the ragweed family, so if you are allergic to ragweed, marigold,
daisy, or chrysanthemum, you should not use butterbur. Also,
the RAW herb should not be used because it contains substances
called pyrrolizidine alkaloids that can be toxic to the liver
and kidneys and may cause cancer. Commercial butterbur products
have had a lot of these alkaloids removed.
- Stinging
nettle (Urtica dioica): Another natural antihistamine,
stinging nettle has a long history of use for seasonal allergies,
without the drowsiness and dry mouth associated with many pharmacological
antihistamines. Nettle inhibits your body’s ability to produce
histamines. The recommended dose is about 300 mg freeze-dried
nettle extract daily.
- Goldenseal
(Hydrastis canadensis): Goldenseal may be helpful for
seasonal allergies. Laboratory studies suggest that berberine,
the active ingredient in goldenseal, has antibacterial and immune-enhancing
properties.
- Eucalyptus
oil: This pure essential oil can be healing
to mucus membranes. You can apply a drop on a cotton ball and
sniff it several times a day, add a few drops to water (or to
a nebulizer, if you own one) for a steam treatment, or use a
few drops in your bathwater.
Refer to
this
University of Maryland article for a more complete discussion
of common herbal allergy treatments.
Other Tips
For Making Allergy Season a Breeze
Another simple,
inexpensive and very beneficial practice you can do at home is
flushing out your nasal passages with a neti pot. A neti pot is
a small vessel with a spout you insert into your nose that can
be used to gently irrigate your nose and sinuses with a salt-water
solution. (For more on this method, please refer to this
previous article.) You may want to also consider the purchase
of an air purifier. Air purification will result in lower levels
of allergens circulating around your home or office.
One of the
best things you can do to reduce your allergy symptoms naturally
is exercise. In a 12-year
long German study, sedentary children had more than twice
the rates of hay fever as active children. If you have seasonal
allergies, you will also benefit from clearing out some of your
"energy meridians" with an energy technique such as acupuncture
or EFT.
In one study
published in the American Journal of Chinese Medicine,
acupuncture reportedly reduced allergy symptoms in ALL 26 participants.
In a second study, just two acupuncture treatments totally eliminated
symptoms in more than half of the participants. Even simpler is
the Emotional
Freedom Technique (EFT), which is my favorite energy technique
because you can do it by yourself at home, and it's easy to learn.
EFT is "acupuncture without the needles."
Lastly, remember
to keep your vehicle and building windows closed on high-pollen
days, especially in the mornings before 10 am when pollen levels
are normally highest. Similarly, avoid using window fans when
pollen levels are high. Pollen levels are also worse on dry and/or
windy days. If you must do yard work, wearing a mask might be
helpful. If you enjoy hanging clothing or sheets outside to dry,
you may want to avoid this during allergy season as spores and
pollen can cling to fabric and end up right next to your body,
triggering symptoms.
You can get
a pollen update for your area here.
A Few Things
to AVOID…
- Avoid
chlorinated pools and hot tubs if you have allergies or asthma.
Swimming
in chlorinated pools has been shown to increase respiratory
problems and allergies.
- Want to
clean your air ducts? Don’t bother. One
study showed that no significant allergens accumulate in
air ducts, so cleaning them is a waste of money. Instead, put
the money toward a good air purifier.
- You might
want to back off on cell phone use if your allergies are raging.
A
study out of Bastyr University found cell phones might actually
worsen allergy symptoms. The study, published in Archives
of Allergy and Immunology, found that one
hour of continuous cell phone use exacerbates allergic responses
to dust and pollen. Although the findings are preliminary,
they suggest that microwave radiation may somehow make allergic
responses worse.
Hopefully,
I have given you a number of ideas to try that you might not have
known about. It is always best to employ natural measures before
harsh drugs, and fortunately, natural allergy treatments work
quite well. If you find a "magic combination," please don't hesitate
to share your pearls of wisdom by posting a comment below!
Additional
References: