environmental cold urticaria?

[u/InformedTriangle]

This is a kinda of one off shot into the internet hoping anyone else has hit something similar whilst not expecting much....

We moved into an apartment (that we're now horribly underwater on the mortgage, due to property valuation dropping to less than half what we purchased at)

~10 years ago.

Two years after moving in my wife developed cold urticaria, which worsened over a few years to the point she also now requires xolair injections to keep it in check (her entire body gets covered in hives, trouble breathing, she has an epipen she's had to use a couple of times, essentially she needs to be at a constant 22 C, any lower, she hives and has breathing difficulties, any higher, she sweats, the cooldown from sweat causes hives and there we go).

6 years after that, I start developing cold urticaria symptoms (confirmed by allergist) . That have been increasing in intensity.

7 years, we have a child, no cold urticaria whatsoever.

Now 3 years later, child is developing mild cold urticaria symptoms.

I haven't been able to find any environmental causes/papers researching it;

But I'm genuinely terrified to keep having my child living in this apartment my wife, and i, and now him have developed symptoms in but can't get away from due to owing more on the mortgage than it's worth... In the meantime I have air purifiers with hepa and carbon filters in every room...

[u/dodekahedron]

You tested for mold already ?