Patch Testing San Antonio, TX
Patch Testing
San Antonio, TX
Find Out What’s Really Irritating Your Skin
You’ve switched soaps, changed your laundry detergent, stopped wearing your favorite jewelry, and the rash keeps coming back. You’ve been treating the symptoms for months but nobody has told you what’s actually causing them. You’re not looking for another cream. You’re looking for an answer.
Patch testing at Juniper Allergy in San Antonio identifies the exact substances your skin is reacting to.
Dr. Amanda Trott-Gregorio will pinpoint your contact allergens precisely, so you can stop guessing, stop rotating products, and start healing for good.
Meet Dr. Amanda Trott-Gregorio
Dr. Amanda Trott-Gregorio is a board-certified Allergist and Immunologist who has spent the past 10+ years in private practice in San Antonio, transforming the lives of countless patients with her warm, personable approach and genuine passion for resolving allergies.
A proud native of south Texas, she graduated from Texas A&M University in 2001 before earning her MD from St. George’s University School of Medicine, where she studied from 2003 to 2007. She went on to complete her residency at UTMB in Galveston from 2007 to 2010, followed by a prestigious Allergy and Immunology fellowship at Washington University in St. Louis from 2010 to 2012.
Insurance We Accept
Insurance We Accept
What Is Patch Testing?
Patch testing is a specialized allergy test designed to identify contact allergies, reactions triggered by substances that come into direct contact with your skin.
Unlike standard allergy testing which looks for airborne or food triggers, patch testing focuses specifically on delayed allergic reactions to things like metals, fragrances, preservatives, hair dye chemicals, rubber, and workplace substances.
Small amounts of common contact allergens are applied to your back using adhesive patches, left in place for 48 hours, and then carefully read by Dr. Trott at your follow-up visit. It is the gold standard diagnostic test for contact dermatitis and one of the most valuable tests for anyone dealing with a recurring skin rash that hasn’t responded to standard treatment.
Could Patch Testing Be Right for You?
✓ Your skin reacts to jewelry, watches, belt buckles, or metal fasteners
✓ You’ve noticed reactions after using certain skincare products, cosmetics, or hair dye
✓ Your hands or forearms are irritated from workplace exposures, gloves, cleaning agents, adhesives, or chemicals
✓ You’ve been diagnosed with eczema but your current treatment isn’t giving you the results you need
✓ Your dermatologist has recommended patch testing before your next appointment
What to Expect: The Patch Testing Process
1
Initial Consultation
Our allergy specialist reviews your symptoms, medical history, and lifestyle to recommend the most appropriate testing for you.
2
Testing
We conduct your test in-clinic using precise, proven methods, designed to be as comfortable and accurate as possible.
3
Results
Your results are carefully reviewed and interpreted by our board-certified allergy specialist right here in our San Antonio clinic.
4
Your Personalized Plan
We walk you through your results and build a treatment plan personalized specifically to you.
Hear It from Our Happy Patients!
Why Choose Juniper Allergy For Patch Testing in San Antonio
Board-Certified Allergist
Our allergy specialists are board-certified in Allergy and Immunology, ensuring every patient receives the highest standard of care.
Over 10 Years of Experience
Juniper Allergy has been serving San Antonio patients for over 13 years with expert allergy and immunology care.
Individualized Care
We use modern, individualized care personalized specifically to each patient, never a one-size-fits-all approach to treatment.
Compassionate Team
At Juniper Allergy, we prioritize the relationship between doctor and patient so you always feel heard and supported.
Conditions Diagnosed By Patch Testing
Contact Dermatitis
An inflamed, itchy rash that flares up when your skin comes into direct contact with allergens like nickel, fragrance, or common preservative ingredients.
Occupational Dermatitis
Skin reactions developed through on-the-job exposures, frequently seen in healthcare workers, hairstylists, mechanics, cleaners, and tradespeople.
Cosmetic Dermatitis
Redness, breakouts, or irritation caused by skincare products, makeup, hair treatments, or fragrances that contain hidden ingredients your skin reacts to.
Eyelid Dermatitis
Puffiness, flaking, or persistent itching around the eye area, often traced back to eye makeup, nail polish transfer, or facial cleansers.
Shoe Dermatitis
Itchy, scaly patches on the feet caused by rubber components, leather tanning chemicals, adhesives, or dyes used in the construction of footwear.
Your Skin Won’t Heal Until You Find the Trigger
Let Our Allergists Help
Frequently Asked Questions
How much does patch testing cost in San Antonio?
Cost depends on allergen panels needed and your insurance coverage. Most plans cover medically necessary patch testing. Call us at (210) 888-1297 before your appointment and our team will walk you through your costs clearly.
Is patch testing painful?
Patch testing is not painful, no needles, no scratching, no injections involved. You may feel mild itching at a test site during the 48 hours, which simply means your skin is responding to something worth investigating.
Is patch testing the same as a regular allergy test?
No, they test for completely different reactions. Standard testing identifies IgE-mediated allergies like hay fever. Patch testing identifies delayed hypersensitivity reactions responsible for contact dermatitis, the right test for recurring skin rashes from things you touch.
Can I shower or exercise during the 48 hours the patches are on?
Keep your back dry and avoid heavy sweating. No swimming or intense exercise during this period. Be careful when showering. Our team will give you specific practical guidance at your appointment so you know exactly what to do.
What if I test positive for something I use every day?
That is actually the best outcome, you have found the cause. Our team gives you a written list of ingredients to avoid and recommends specific alternatives. Most patients see real skin improvement within a few weeks of eliminating the trigger.