Benadryl (Diphenhydramine), Claritin (Loratadine), Allegra (Fexofenadine), Xyzal, Zyrtec, or Antihistamine nasal sprays such as Dymista or Azelastine.
Certain antidepressants can also interfere with your skin testing. In such a case, blood work can be ordered instead.
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