Is Dermographism urticaria caused by h.pylori or a spirochete infection? or is it caused by both?

Is Dermographism urticaria triggered by infections altering cortisol levels?

Lyme diseases' borrelia, the ulcer causing h.pylori, and leptospirosis (the spirochete of lakes)

H.pylori and dermographism urticaria
http://www.jtad.org/2009/3/jtad93301a.pdf
https://www.ncbi.nlm.nih.gov/pubmed/?term=dermographism+urticaria+h.pylori

Lyme's Borrelia spirochete and dermographism urticaria
http://www.healthy-skincare.com/lyme-disease-and-dermatographism-itching-hives.html

Dermographism....mast cells dysfunction?

If spirochetes make high levels of cortisol in the body over long periods of time would this then cause the mast cells to down regulate the receptors to the pool.

previous posts about spirochetes and cortisol
http://angelabiggs.blogspot.com/2016/07/spirochetes-and-high-cortisol.html

Normally mast cells decrease after cortisol applications and dermographism decreases
https://www.ncbi.nlm.nih.gov/pubmed/2597634

Leptospirosis, weil's disease, and rash
https://patient.info/health/leptospirosis-and-weils-disease

Can you have leptospirosis and not develop weil's disease?

doxcycline can kill spirochetes ?
https://en.wikipedia.org/wiki/Doxycycline

poison ivy allergy and h.pylori
http://angelabiggs.blogspot.com/2016/05/severe-poison-ivy-reactions-and.html

things that might kill spirochetes
http://angelabiggs.blogspot.com/2016/05/brassicaceae-mustards-mustard-flowers.html

Possums which eat ticks are immune to lyme disease. What does their immune system do to combat the Borrelia?