# Why the sudden allergies?

**URL:** <https://boards.straightdope.com/t/why-the-sudden-allergies/659617>\
**Category:** Factual Questions\
**Created:** [May 29, 2013, 1:22pm UTC](https://boards.straightdope.com/t/why-the-sudden-allergies/659617 "2013-05-29T13:22:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![CastleAnthrax](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@CastleAnthrax](https://boards.straightdope.com/u/CastleAnthrax)\
**Post date:** [May 29, 2013, 1:22pm UTC](https://boards.straightdope.com/t/why-the-sudden-allergies/659617/1 "2013-05-29T13:22:25Z")

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Yesterday, I had a sudden allergy attack. Started sneezing and couldn’t stop, eyes watering, everything itching, nose swelling, the works. I don’t know why. The only times I have had this before were when I had a sudden puff of dust in my face, like when I’m mixing henna powder and am not careful. I took a Claritin and it got much better but wasn’t fixed. That medicine has always completely fixed the problem of dust reaction, but not today.  
I work from home. I haven’t left the house since three nights ago. I sit in the same place most of every day. I hadn’t even had any food or drink just before the attack. And now I’m still cloggy and itchy and it’s not time to take another dose yet. Why am I all the sudden allergic to the exact same surroundings as I’ve had for months?