All About Baby Allergies
Identifying and treating baby's allergies -- or is it
a cold?
Is an Allergy?
Parents often don't
realize that symptoms such as runny nose, rash, upset stomach, or crankiness
can signal an allergy. Instead they chalk these things up to a chronic cold, infant acne, delicate stomach, or just a
fussy baby. Most of the time these symptoms -- especially if they're
short-lived -- are the result of a cold or another passing ailment. However, in
some cases the cause is allergies.
When baby has an allergic
reaction, it's the result of an inappropriate response by his immune system.
The immune system is programmed to fight off illness, but sometimes it reacts
to a harmless substance, like pollen, as if it were an invading parasite,
virus, or bacteria. To fight back, the immune system overproduces protective
proteins called antibodies. This overproduction causes swelling and
inflammation of tissues -- the nasal passages, for example. Your baby's
allergic reaction can recur whenever he's exposed to whatever triggered it.
The tendency to get
allergies is hereditary, but specific allergies are not. For example, if you're
allergic to penicillin, your child may develop allergies although he might not
be allergic to penicillin.
Colds vs. Allergies
Can you tell the
difference between a cold and an allergy? It's not easy, because the symptoms
are similar on the surface. These symptoms will help you distinguish a cold
from an allergy:
Upper
respiratory tract: A runny
nose with cloudy nasal discharge and fever is probably a cold. The symptoms
should go away in a week or so. But persistent, thin, watery nasal discharge
may indicate allergies.
A rare and severe allergic
reaction called anaphylaxis results in rapid swelling of baby's airways. This
prevents baby from breathing or swallowing. If you think this is happening to
your child, call 911.
Lower
respiratory tract: Coughing
and wheezing (noisy breathing in which your baby makes a whistling sound) are
common ininfants and
toddlers. Babies have small, sensitive airways in their lungs. When the airways
swell up as a result of a respiratory virus, babies tend to cough or wheeze.
Sometimes coughing and wheezing are the result of asthma, a lower respiratory
disease that affects about 15 percent of children in the United States.
Allergic babies are prone
to respiratory viruses and have trouble getting rid of coughs or colds. In
response to allergens and viruses, the muscles of baby's airways haves spasms
and swell, leading to a dry, hacking cough. This can progress to wheezing.
Wheezing can be dangerous
in a small child because it's an indication that the child is having trouble
breathing. If you think your child may be wheezing, observe whether his
breathing is noisier when he breathes out or in, whether he's sucking in his
chest or stomach or flaring his nostrils to breathe, and whether he seems
uncomfortable. If you think your child is showing any of these symptoms, call
your doctor right away.
Eyes: Conjunctivitis, or pinkeye, is a
condition caused by both allergies and viruses. Its symptoms are a red eye and
discharge that causes the eye to be crusted shut in the morning. Allergic
conjunctivitis doesn't look very different from pinkeye that's caused by a
virus, so your child's pediatrician will need to make the diagnosis.
There are, however, some
things you may notice that are more specific to allergy-induced pinkeye. Babies
with allergies may rub their eyes frequently (allergic eyes tend to be itchy),
tear excessively, have dark circles under the eyes, and be irritable.
Skin: Newborns are prone to rashes,
but most rashes (including infant acne) vanish by 2 or 3 months of age. This is
the time allergic rashes tend to appear. The most common allergic rash is
atopic dermatitis, or eczema, and for many babies it's the first warning sign
of allergic tendencies. Eczema is a red, scaly, and sometimes oozing rash on
baby's cheeks, torso, arms, and legs. In toddlers and older children, it
appears as persistent dry, itchy patches of skin, usually on the neck, wrists,
and ankles, and in the creases of the elbows and knees.
Contact dermatitis is an
allergic rash caused by a reaction to soap, detergent, wool clothing, poison
ivy, or another irritant that has touched baby's body.
The classic allergic rash
-- the itchy, welt-like hive -- is relatively rare in infants, and when it does
occur tends to be smaller than in older children and adults (usually less than
an inch long).
Stomach: Viruses can cause vomiting, diarrhea,
upset stomach, and gassiness. But these symptoms can also result from allergies
-- and not just to food. Children with environmental allergies may have stomach
ailments as a result of swallowed phlegm, which can irritate the stomach.
Behavior: Problems with eating, sleeping,
or irritability can result from allergies. Your allergic baby will be fussy and
uncomfortable. That's usually due to his chronic congestion, abdominal pain, or
itchy skin, eyes, or nose.
Another clue to look for
is when symptoms occur. Colds are more common in the winter, but indoor
allergies (such as a dust mite allergy) may be present all year. A food allergy
can manifest itself anytime from a few minutes to a few hours after the
offending food is eaten. Seasonal hay fever is most common in the spring or
fall, but it usually doesn't affect babies.
Soothing Baby's Symptoms
If your baby has been
suffering from allergies, you'll want to relieve his symptoms and minimize the
chances of their recurring by making changes in his environment. Usual
treatments for allergies include:
·
Skin moisturizers or 1 percent hydrocortisone
cream for eczema and other allergic rashes
·
Oral antihistamines, like Benadryl, for rapid
relief of an older baby's symptoms
There's good news for infants suffering from allergies. The Food and
Drug Administration has recently approved the prescription antihistamine Zyrtec
for the treatment of year-round allergies in infants as young as 6 months old.
It's the first and only antihistamine -- over-the-counter or prescription --
demonstrated with clinical trials to be safe in infants this young.
Allergies usually get
worse unless exposure to allergens decreases. If you can eliminate baby's
exposure to whatever is causing his reaction for at least six months, his body
will essentially forget about it. However, it's often difficult to identify
what's causing the allergy. You should keep a careful diary of what symptoms
occur and when. This may expose a specific pet, article of clothing, food, or
room in your house as the culprit that's causing the allergy.
Allergy testing, either by
blood or skin test, can be done on children older than 2 months, but test
results are harder to interpret in children this young because their immune
system is still immature. Try to minimize baby's exposure to some common
allergens before resorting to testing by:
·
Covering mattresses and pillows with dust
mite-proof covers
·
Having your cat or dog spend a week out of the
house
·
Putting away feather pillows
·
Switching to a hypoallergenic laundry detergent
Preventing Allergies
If allergies run in your
family, there are measures you can take to help your child avoid allergies:
·
Breastfeed your baby for at least six months.
You can increase the benefits of
breastfeeding if you
avoid eating allergenic foods including milk, eggs, fish, and nuts.
·
If you don't nurse, use a hypoallergenic protein
hydrolysate formula (made
up of protein that's so broken down it's virtually undetectable by the immune
system).
Decrease baby's exposure
to common allergens by creating a hypoallergenic environment for baby:
·
Don't allow smoking in your home
·
Use dust-mite-proof mattress covers and
pillowcases
·
Clean regularly to decrease the concentration of
dust, mold, and feathers in your home
·
Avoid carpeting (especially in baby's room)
·
Keep your home pet-free if possible
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