Posts Tagged ‘Skin Rash’

Simple Nickel Allergy Patch Test

Monday, December 13th, 2010

Ever had a suspicion that you might be allergic to nickel?  You can actually perform a very simple patch test at home!   First you need to find….a nickel!  You are looking for a U.S. 5 cent nickel minted between 1946 up until today.  Those coins contain 25% nickel and 75% copper.  Wash the nickel with soap and water so you are sure it is contaminant free; you want to be sure it is only the nickel reacting with the skin.

nickel-patch-test-beforeAs you can see we used two bandages to hold the nickel in place.  We left it on for 24 hours.  Our victim, I mean…our test subject… was selected since he has already been diagnosed with nickel allergy.

After 24 hours we removed the nickel patch.

At the time of removal there was no noticeable reaction at all.  In fact, the test subject was surprised by this.  Not so fast!

At 24 hours after removal the skin welted up and turned pink  in a perfect, nickel sized circle.nickel-patch-test-after

At 48 hours the itching was intense and the affected area was bumpy and small sores had developed.

At 72 hours peak reaction occurred.  Typical itching, painful and slightly oozing rash was fully developed.  By now it looked much like a poison ivy reaction.

After 4 days all symptoms began to subside and healing was taking place.

10 days after patch removal the affected area was healed but still had a rough, sandpaper texture to it.

We recommend applying Neosporin, or some other over the counter antibiotic cream, to prevent itching and infection as soon as you see a positive reaction.  You do not need to let the rash run it’s course untreated as we did once you have reaction confirmation.

So there you have it, simple and easy to do.  Big thanks to Alex for letting us experiment on him!

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