Guest guest Posted August 26, 2010 Report Share Posted August 26, 2010 You cannot do allergy skin tests while on anti-histamines. Even oxygen therapy will alter your test results. Dr Rea suggests you are off all medications for a couple of weeks prior to testing to get accurate results. D > > The strangest thing happened and I wondered if anyone had any ideas. So I had skin prick testing done at an allergist's. I knew I was allergic already, having had positive tests before and symptoms, but was wondering if the tests would show a more severe response. > Quote Link to comment Share on other sites More sharing options...
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