Skin tests may be used to diagnose allergies to certain substances.
In this test, the skin on the back or the arms is pricked with one or more
small doses of substances (allergens) that might cause an allergy.
The amount of swelling and redness at the sites of the skin pricks is measured
to see which allergens cause a reaction.
Skin tests may be recommended for people with
asthma. If you have asthma, avoiding substances that
cause a reaction (triggers) may improve your asthma symptoms. For some people,
allergy shots (immunotherapy) may be helpful.
By Dr. Amy Wechsler
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