Do
you have asthma or allergies?
By: Harpal S. Jande, M.D.
With the onset of spring and summer, we experience sunny
weather, warmer temperatures, and perhaps symptoms of not
quite feeling well?
If you are having trouble breathing or experience cold-like
symptoms, don’t wait to find out why. Asthma or allergies
could be causing your health difficulties.
Most of our migrating populations from India have never
experienced these problems before, however because of home
dust or the change in environment, allergies or asthma can
develop.
ASTHMA:
You’re coughing, your chest feels tight and you are
having trouble breathing. It could be just a cold. But these
also could be signs of asthma. Asthma is a condition that
causes your airways to swell and narrow. It could cause
you to wheeze, cough and feel short of breath. Attacks may
be triggered by exercise, dust, viral infections and other
conditions, such as allergies. The attacks can vary in length,
frequency and severity.
Sometimes, patients go through several courses of antibiotics
for pneumonia and don’t get better. In that case,
the underlying problem could be asthma. Often, if you treat
the asthma, patients react quickly and their symptoms disappear.
Other causes of chronic cough can be postnasal drainage,
chronic sinusitis, allergies or even acid reflux. Recognizing
and treating those issues usually resolve the cough.
To diagnose asthma, your doctor will likely ask about your
symptoms and listen to your breathing. You also may be given
spirometry – a test that measures airflow in your
lungs. Your doctor may also recommend:
- A test that uses a handheld peak-flow meter to check
your breathing over a period of one to two weeks.
- Allergy testing to find out what allergens might affect
you.
- A test to see how your airways react to exercise.
- Tests for gastroesophageal reflux disease (GERD) or sinus
disease.
- Chest x-rays or an electrocardiogram to find out if other
lung diseases or heart disease could be causing asthma symptoms.
Many of the 14 million to 15 million Americans who suffer
from asthma make unnecessary lifestyle compromises to accommodate
their disease. Asthma also can be deadly: an estimated 5,000
people die each year. Under-diagnosis and improper treatment
are major contributors to these alarming statistics. While
there is yet no cure for asthma, it can be controlled with
an accurate diagnosis, the right treatment and ongoing monitoring
by you and your physician.
ALLERGIES:
An allergic reaction is your body's response to a perceived
invader, called an allergen, which include dust mites, pollen,
molds, animal dander (from cats and dogs) and even food.
You breathe in, eat or touch potential allergens all the
time, mostly without even taking notice. That's because
they're usually harmless. But if your immune system mistakes
pollen, pet dander or some other safe substance for a dangerous
invader, you may develop an allergy.
You initially become allergic — or sensitized —
to a substance before any symptoms appear. But behind the
scenes, your immune system is in high gear. Most allergies
develop in the same way.
Let's say you've just inhaled ragweed pollen. The first
time, you might not even sneeze. But when the allergen reaches
your nasal lining, immune cells called macrophages swiftly
move in. Macrophages swallow up allergen particles, and
then hook up with certain toxin-fighting white blood cells.
Once alerted, other white cells produce a protein called
IgE, in this case, programmed to react to ragweed pollen.
Allergen-specific IgE antibodies then attach to mast cells
in the mucous membranes of your eyes, nose and throat. You
also have mast cells in your digestive tract and skin. These
cells are storehouses for allergy-symptom-causing chemicals,
including histamine, which is responsible for telltale allergic
itching and swelling.
All of this happens the first time you encounter an allergen.
After you're sensitized, you'll have allergy symptoms whenever
you're exposed to the substance, whether it's something
you inhale, swallow or get on your skin. Your eyes itch
and water, and your nose and throat swell and secrete mucus
— a classic allergy attack is under way.
Some common allergy tests include:
- Scratch test – an allergen is placed on the skin
by making a small puncture.
- Intradermal test – an allergen is injected under
the skin with a syringe.
- Challenge testing – an allergen is eaten or inhaled.
- Blood Test – Blood is drawn and exposed to allergens.
Remember, to diagnose and treat these types of allergy
or asthama problems, visit your doctor or an allergy/immunology
specialist.
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Dr. Jande is a monthly contributing writer on nriinternet.com
NRIdoctors section and owns his own internal medicine practice
in Washington Twp, Michigan.
Read all of Dr. Jande’s articles on nriinternet.com.