Is anyone else in this unfortunate category of diagnosed dermatrographic urticaria? Ideally in regard to SPTs.
Not dx but I seem to get something like this when my allergy load is high and I forget my daily meds.
Yes, me-- which is why I haven't bothered with SPT for shellfish. Sure, it'd be positive. And probably 50-50 odds that so would the negative control and everything else, too.
I can't do skin allergy testing unless it's the dead of winter. Otherwise I just react to everything, including the negative control. So lowering my allergen load is essential if I want skin testing. I don't really have any need for skin testing at this point in my life, though, so it's a non-issue.
Is that where your skin develops welts from pressure and you can write on your skin? If so, I've been diagnosed with it and my skin tests remain pretty accurate with a few false positives. My controls remain as they should be. I will have to ask my allergist along with all the questions I've been saving up.
DS2 has highly twitchy skin, uticaria, etc.
We have two things happen with spts - either we cannot get anything to react (including histamine) or it goes insane. I swear our doctor does the testing anyway for poos and giggles. He tends to base true results off the blood test.
My wife has demographism / solar urticaria.