What is T.R.U.E. Test? Uses, warnings & side effects

Updated May 14, 2025  •  Published Aug 21, 2022

T.R.U.E. Test overview

BRAND NAMES:

  • T.R.U.E. Test

Generic Names:

  • T.R.U.E. Test

Uses:

  • A skin test to see if you have certain allergies.

Therapeutic Classes:

  • Dermatological Agent

Forms:

  • Test

How it’s taken:

  • On the skin

What is T.R.U.E. Test used for?

What form(s) does T.R.U.E. Test come in?

  • Test

What are common T.R.U.E. Test dosages?

  • Diagnostic Test 1 Box

How to take T.R.U.E. Test

  • A trained nurse or other trained health care professional will apply this patch to your skin.

  • Make sure you do not get your test patch wet. Avoid doing extreme physical activity, or do anything that will cause you to sweat while taking this test.

What to do if you miss a dose of T.R.U.E. Test

T.R.U.E. Test contraindications - Who shouldn't take T.R.U.E. Test?

  • You should not take this test if you have a current severe skin allergy.

T.R.U.E. Test warnings

  • Avoid exposure to sunlight when you take this test.

  • Make sure your doctor knows if you are pregnant or breast feeding.

  • You should not have this test if you have severe allergic reactions.

  • This test may cause itching or burning of the skin. Ask your doctor to recommend a medicine to take if you have these symptoms.

T.R.U.E. Test interactions & what to avoid when taking T.R.U.E. Test

  • Make sure your doctor knows if you are using steroids such as cortisone, hydrocortisone, prednisone, Aristocort®, Celestone®, Cortone®, Cortaid®, Decadron®, Deltasone®, or Pediapred®.

  • Avoid exposure to sunlight when you take this test.

  • This test may cause itching or burning of the skin. Ask your doctor to recommend a medicine to take if you have these symptoms.

  • You should not have this test if you have severe allergic reactions.

T.R.U.E. Test side effects - How does T.R.U.E. Test make you feel?

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Swelling in your hands, ankles, or feet.

  • Pain or severe discomfort at the test site.

Less Serious Side Effects

  • Darkening of skin in the test area.

  • Dryness or white patches on your skin.

  • Pain, itching, burning, or swelling of your skin where the patch is placed.