What To Expect:
amounts of possible allergic material are applied to the forearm or
back with a device that causes a scratch/pinch sensation. Allergic
reactions will illicit an area of swelling and itching resembling a
mosquito bite reaction. After a 20 minute observation period, the
materials are removed. Depending on the reaction and the age of the
patient, this may be followed by further testing involving the
introduction of possible allergic material underneath the skin of the
upper arm. This is performed with a small needle similiar to that used
in TB skin testing.
No antihistamines for at least 72 hours before testing.Some medications must be avoided longer.
May take antihistamines and apply cold compresses and Cortisone cream after procedure complete