Phoenix Environmental Allergy Testing

San Tan Allergy & Asthma

little boy plays with rabbit outdoors

Testing for environmental allergies and foods can be performed relatively quickly and painlessly using a method called “scratch” testing. Essentially skin testing (allergy testing) involves applying a small amount of an “extract” containing different allergens with plastic applicator. The skin is not broken during the testing procedure. Skin test reactions are measured after 15 – 20 minutes giving you a good idea about whether or not you are allergic to variety of different allergens. Positive reactions may itch, much like a mosquito bite, but usually any discomfort resolves in less than an hour.

The following medications may interfere with skin testing and should be discontinued 7 days before testing (if possible) is performed in order for testing to be accurate:

  • Claritin (loratadine)

  • Zyrtec (cetirizine)

  • Allegra (fexofenadine)

  • Benadryl (diphenhydramine)

  • Clarinex (desloratadine)

  • Xyzal (levocetirizine)

  • Chlorpheniramine, Actifed

  • Dimetapp

  • Patanase

  • Astelin (azelastine)

  • Dymista (fluticasone/astelin)

  • Periactin (cyproheptadine)

The following medications should be discontinued 3 days prior to testing (if possible) for testing to be accurate:

  • Pataday/patanol (olopatadine)
  • Azelastine eye drops, ketotifen eye drops

  • epinastine eye drops

There are additional medications that may interfere with skin testing, however they should not be discontinued without further discussion with your primary care doctor or one of the providers at San Tan Allergy & Asthma. If you are interested in allergy testing, please contact our office and schedule an appointment to meet with one of our Phoenix allergy experts.

(480) 626-6600

Patient Testimonials

Staff is professional and always very friendly!

After allergy testing, Dr. Shimamoto explained the process and options of allergy injections and answered all my questions. I follow up with Heidi, who is also great! As of now, I’m still doing weekly injections and it’s been easy to get desired appointment day and times. I am happy that I chose San Tan Allergy!”

“Thank you for being Professional and Caring.”

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Lisa Blaylock ★★★★★

Watch out for telemedicine appointments. Make sure you have pre-screened for them. Worked with Jackie over the phone. She is fantastic–super patient and professional. Had exam and skin tests ordered by Dr. Shimamoto. He’s happy and efficient. Great practice, just need to be patient with all the delays and possible miscommunications due to all the pandemic-imposed restrictions.”

E. M. ★★★★★

Dr. Jain is AMAZING and I would recommend him to anyone who needs a dr for allergies (environmental and food) and asthma. He is great with kids. My two year old has been seeing him for over a year for various allergies and asthma and the office staff is great with pediatrics. I highly recommend.”

Monae Moulton ★★★★★

We love Dr. Shimamoto and the staff at San Tan Allergy & Asthma.

Fran Lowder ★★★★★

The Staff And All The Providers Are Great. My Kiddos Love Coming To See Dr. Jain and All The Wonderful Staff

Jacqui Rodriguez ★★★★★

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Visit us at any of
our locations

Gilbert Location

4915 E. Baseline Road, Suite 112
Gilbert, AZ 85234-2966

480-626-6600 480-626-6604

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Monday-Thursday: 8:00 am – 5:00 pm
Friday: 8:00 am – 3:00 pm

Arcadia Location

4840 E. Indian School Rd. Suite 101
Phoenix, AZ 85018

(480) 526-7788 480-626-6604

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Monday-Thursday: 8:00 am – 5:00 pm
Friday: 8:00 am – 3:00 pm

Payson Location

708 S. Coeur D’Alene Lane Suite C
Payson, AZ 85541


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Allergy Injection Hours

8am – 11:30am & 1pm – 4:30pm

8:00am – 11:30am & 1pm – 5:30pm

8am – 11:30am & 1pm – 4:30pm

 8am – 11:30am & 1pm – 5:30pm

8am – 2:30pm

Closed: Saturday & Sunday

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    Welcome to San Tan Allergy & Asthma and thank you for choosing our practice! Please provide your contact information here to schedule a New patient appointment at one of our locations and one of our front office staff members will call you within the next business day to assist you. We look forward to treating you and hope we can help you! ​