Before Your Testing

To make certain that your allergy skin test is accurate, do not take any antihistamines 2-3 days prior to your appointment. Antihistamines stop the reactions that we base our results on and the physician will not be able to determine how best to treat you.

Antihistamine medications include but are not limited to:

  • Allegra
  • Claritin
  • Clarinex
  • Zyrtec
  • Alavert
  • Loratadine
  • Phenergan
  • Atarax

Astelin and Astepro, nose sprays containing antihistamines, must also be stopped 2 days prior to testing.

Some over-the-counter medications such as Benadryl and allergy/cold/sinus medications can be taken up to 3 days before your allergy testing. At your visit, your allergy technician will assess if any of the above medications, if taken, will interfere with skin testing. If it is determined that skin testing results will not be accurate, you will need to reschedule your appointment.

You can bring your usual medications to the testing, when the testing is complete you can begin your regular dosing.


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