Allergy Testing Instructions

Allergy Testing Instructions

  • Patients should avoid oral, intranasal and ocular antihistamines for 7 days prior to their appointment date--These drugs include Claritin (Loratadine), Clarinex (Desloratadine), Allegra (Fexofenadine), Zyrtec (Cetirizine), Xyzal (Levocetirizine), Astelin/Astepro (Azelastine), Dymista (Fluticasone/Azelastine), Patanase (Olopatadine), Optivar (Azelastine), Patanol/Pataday/Pazeo (Olopatadine) and Alaway/Zaditor (Ketotifen) 
  • Some over-the-counter eye drops such as Visine-A, Naphcon-A and Opcon-A contain ocular antihistamine and need to be avoided for 7 days prior to appointment date 
  • Patients should avoid Atarax (Hydroxyzine) 10 days prior to their appointment date 
  • Benadryl (Diphenhydramine) needs 48-hour avoidance
  • Some over-the-counter cold medications such as Tylenol PM, NyQuil and Advil PM may contain antihistamine so please avoid for 48 hours prior to appointment date 
  • Other medications, i.e. psychiatric medications (such as Amitriptyline, Quetiapine, Doxepin & Imipramine), can also have skin test suppression but patients should not stop this before seeing Dr. Robertson. The decision to stop these medications needs to weighed and alternatives considered 
  • There is no need to stop intranasal steroid medications such as Flonase (Fluticasone), Nasacort (Triamcinolone), Nasarel (Flunisolide), Nasonex (Mometasone), Qnasl (Beclomethasone) and Rhinocort (Budesonide)
  • There is no need to stop leukotriene receptor antagonists such as Singulair (Montelukast) and Zyflo (Zileuton) 
  • There is no need to stop asthma inhalers prior to skin testing appointment  
  • Hold rescue inhaler (e.g. Albuterol, ProAir, Proventil, Ventolin, Xopenex) for 4 hours prior to appointment
  • Hold long acting inhaler (e.g. Advair, Airduo, Breo, Symbicort, Dulera, Trelegy) for 12 hours prior to appointment
  • Hold Tiotropium (Spiriva) for 24 hours prior to appointment