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SKIN ALLERGY
Skin Reactions and Contact Dermatitis
Allergic contact dermatitis occurs when the
skin comes into direct contact with an allergen, resulting in hives and
skin rashes. Common causes of contact dermatitis include topical
medications, perfumes, makeup and plants, such as poison ivy.
Although skin allergies rarely cause dangerous reactions,
symptoms are uncomfortable and unsightly, and can be chronic. Click here
for more specific information on
contact dermatitis.
Insect Bites and Bee Stings
A bee sting isn't a pleasant experience for anyone,
but if you're allergic to bee sting venom, your life can be at risk.
Stinging insects such as wasps, hornets and bees can cause intense
swelling, itching and even death. Anyone with a severe bee sting allergy
should practice avoidance, learn to identify areas bees like to frequent,
and carry life-saving medication at all times. More information on these
measures can be found at
Insect and Skin Allergies
site.
Insect
Allergies
Two
million Americans suffer from stinging insect allergies. Bug bites can be
dangerous: every year approximately 500,000 Americans seek emergency room
treatment for stings. Stings cause 40 to 150 deaths in the United States
every year, and those figures may be a conservative estimate.
Yellow jackets, wasps, hornets and bees account for the bulk of insect
allergies, with fire ants in the southern States also taking their toll.
Summer, of course, is the most dangerous time for a person with a bug bite
allergy: nests can contain populations of over 60,000 insects.
Avoidance is the best solution if you have an allergy. Stinging bugs
are often attracted to soda pop, picnic food, perfumes, garbage, and sweet
smells. The insects are also the most dangerous when defending their
nests, so the potential for multiple stings is higher around the nest
where they're more likely to swarm.
Skin Allergies
Skin allergies are common: an estimated nine percent
of Americans suffer from some degree of allergic contact dermatitis. The
number of skin allergy incidents appears to be on the rise. In the 1960s,
only three percent of children were diagnosed with allergic contact
dermatitis. By the late 1990s that number had risen to ten percent.
Allergic contact dermatitis occurs when the skin comes
into direct contact with an allergen. Skin reactions can also be due to
the ingestion of oral medications and certain foods, even though the
allergen has not directly touched the skin. Between ten and twenty percent
of Americans experience hives at some point in their lives. For most
people, allergy-based skin irritation is mild and temporary. For some, a
skin allergy can be both chronic and severe. Learning to identify allergy
symptoms and allergic triggers is the best way to avoid skin allergies.
Symptoms of allergic contact dermatitis vary. Rashes
may appear as blotchy red patches or smaller red bumps. Urticaria, or an
outbreak of hives, is also a common symptom. Symptoms of allergies may
appear as late as one to two days after exposure to the allergen, and can
take as long as two to four weeks to clear up. Some people suffer from
chronic hives that may persist for months.
Treatment Options: Hydrocortisone and Antihistamine
Medications
Avoidance of allergens is the best way to prevent
skin allergies. Avoidance requires that you carefully examine your
surroundings for the allergen: people suffering from a metal allergy, for
instance, should be aware that nickel is commonly used in jewelry and
eyeglass frames. Allergens are often invisible, making avoidance more
difficult.
Treatment varies, depending on the severity of
symptoms. A cold compress can soothe the itchiness of skin rashes. Hives
are a sign of high histamine levels, so an antihistamine may provide
relief. Antihistamine medications are available in both over-the-counter
and prescription forms.
Hydrocortisone is a steroid medication available in
topical and oral forms. Topical hydrocortisone helps reduce the itching
and swelling when allergies are confined to a small area of the skin. Some
topical solutions can even be purchased without a prescription. Extensive
skin rashes and hives may require the use of prescription oral
hydrocortisone. Large or extended doses of any steroid can cause unwanted
side effects: be sure to consult your doctor before using hydrocortisone.
Plants and Dermatitis
Poison oak, poison ivy and poison sumac are
perhaps the best-known causes of skin allergies caused by contact with
plants. Allergic reactions to these plants are not always immediate:
rashes may break out up to two days after contact with poison ivy or
poison oak.
Simply avoiding poison ivy and poison oak isn't always
enough to prevent allergic reactions. Touching an item that has been in
contact with the plants is often enough to trigger a reaction. The
allergen can be passed to human skin through a third party: clothing,
gardening tools or pets that have come into contact with the plants can
"carry" the allergen.
Nickel: A Common Metal Allergy
Nickel allergies are the most common type of metal
allergy, although gold, steel and other metals can also cause reactions.
Nickel allergies appear to be on the rise: fifteen percent of the US
population suffers from nickel allergies, as opposed to only ten percent
in the 1980s. A possible explanation for this increase is the popularity
of body piercing, which brings more people into direct contact with
nickel-containing jewelry.
Nickel is used extensively by the jewelry industry,
although many companies offer nickel-free jewelry. The body does not
actually react to the nickel itself; the allergic reaction is caused by
nickel salts, which are formed when the metal comes into contact with
skin.
A Sun Allergy or Sun Sensitivity?
The body's immune system rarely reacts to sunlight
enough to warrant a diagnosis of a sun allergy. However, symptoms of sun
sensitivity can mimic those of skin allergies. Solar urticaria, or
sun-induced hives, is a fairly common reaction. Sun sensitivity can also
be aggravated by certain medications. Sun block and sunscreen may help,
but no sun block completely shields skin from sunlight, so the skin may
still react. A "sun allergy" reaction can be avoided by limiting sun
exposure, wearing protective, long-sleeved clothing, sunglasses and
wide-brimmed hats.
An annual "sun allergy" affects many people in the
springtime, especially in areas where winter sunlight is limited. Called
polymorphous light eruption (or PMLE), the condition occurs up to
three days after initial sun exposure, causing skin rashes and hives. As
springtime progresses, the body builds up a tolerance to sunlight, and the
condition usually fades completely by summer. People who experience PMLE
should use sunscreen or sun block until the skin adapts to the new season.
Insect Allergies: Stinging Insects to
Watch For
If you have an allergic reaction to
the venom of a particular insect, experts estimate that you have a
sixty percent chance of being allergic to other insects as well.
Bees, wasps, hornets, and yellow jackets should be avoided as much as
possible. In the Southern parts of the United States, fire ants also
cause allergic reactions.
Ticks, biting flies and some varieties
of spider may also cause allergic reactions, although incidents of
reactions from these species are infrequent. A mosquito bite can
cause a reaction, although a serious allergic reaction to a mosquito
bite is uncommon.
Symptoms: Itching, Hives and
Anaphylactic Shock
A normal reaction to a bee sting
or other bug bite is fairly mild. The immune system reacts to the
venom in the sting, resulting in some pain, itching, swelling and
redness around the sting or bite.
In more severe reactions, swelling and
hives spread beyond the original reaction site. A bee sting may
result in swelling and itching over a large area of the body, for
example, or a mosquito bite can swell up to the size of a
grapefruit. Such reactions may last for several days. As alarming
and discomforting as such symptoms may be, they are not usually
cause for concern. An important exception, of course, is any
swelling around the mouth, throat or nose that restricts breathing.
The most severe reaction to stinging
insects is anaphylactic shock, or anaphylaxis.
Symptoms include hives and skin rashes in areas of the body where
the bee sting or other bite occurred. The allergy sufferer may
experience tightness around the chest, and dyspnea (dyspnea is
difficulty breathing). The throat may swell, and the person's voice
may become hoarse. Dizziness may occur as the victim's blood
pressure plummets. Left untreated, anaphylaxis can result in loss of
consciousness and death.
Treatment: Calamine Lotion to
Epinephrine
Treat a "normal" reaction to a bee
sting or other bite by disinfecting the sting site and icing the
area to provide relief. If the stinger is embedded in the skin,
remove it by "scraping" or brushing it off with a flat edge (hard
plastics are useful for this). Pulling on the stinger will release
more venom into the wound. Mosquito bite itchiness can be combated
with calamine lotion. Stings from wasps and bees may also be soothed
by calamine lotion.
In cases where the wound has swollen
to an unusual size, disinfect and ice the wound as you would a less
serious bite. Antihistamines or steroids may be prescribed to treat
swelling, and generally reduce discomfort until the swelling
subsides. Check with your doctor.
Anaphylactic shock requires immediate
medical attention. Epinephrine, an adrenaline-based medication, is
available for people who suffer from life-threatening allergies.
Epinephrine can be self-administered by syringe or by using a
specially designed "pen." Even after an administration of
epinephrine, the allergy sufferer should receive professional
medical care as soon as possible.
Venom
Immunotherapy
Life
threatening
allergies to
insect stings can
be treated with
venom
immunotherapy.
Immunotherapy
works by injecting
steadily
increasing amounts
of insect bite
venom into the
body. Over time,
the body builds up
an immunity to the
allergen. |
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Know Your Enemy
If you suffer from serious insect
bite allergies, knowing how stinging
insects behave can make your life
safer. Bees, wasps and other stinging
insects are often attracted to sweet
fragrances: soft drinks, hair spray
and open garbage cans will attract
insects. While insect repellant may
help with mosquitoes, it doesn't deter
stinging insects.
Learn where insects make their nests.
Yellowjackets nest in walls and on the
ground. Wasps and hornets favor
bushes, trees and overhanging areas on
buildings. Avoid walking over grass
barefoot: you can easily step on a
wasp or foraging bee. And avoid floral
patterns on clothing: bees have been
known to mistake bright patterns for
flowers.
Cockroaches
While cockroaches don't bite,
don't sting and aren't venomous, many
people are allergic to them, or more
accurately their fecal matter. If you
suffer from chronic or repeated ear or
sinus infections, a stuffy nose,
asthma, or skin rash, talk with your
doctor about evaluating your
sensitivity to cockroaches and other
airborne allergens. Also check out the
Allergy Treatment Tool
or the
Asthma Treatment Tool
for details on potential treatment
options.
Since one of the most common cores of allergy, asthma and
sinusitis is fungal infections,
as well as polyps, reflux disease and bacteria, you have to
make sure that your home and real estate is free from molds and
mildew, which later may develop into molds, and prevent any of
their future growth.
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To eliminate molds and mildew from your home, office
or other real estate and property, follow the suggestions
of the book Do It Yourself
Mold Prevention, Mold Inspection, Testing, & Remediation.
For details, please visit: Mold
Book.
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To
visit the best internet mold website, please visit:
Mold Inspector.
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To find a
Certified Mold Inspector, Certified Mold Remediator or
Certified
Mold Contractor
in your area, please visit:
Certified Mold Inspector.
-
To find services of a mold lawyer or a
mold attorney,
please visit
Mold Lawyer.
REFERENCE:
http://www.insect-and-skin-allergies.com/html/insect-allergies.php3
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