If you don’t mind sharing - what kind of rashes?
In my case, small patches of skin went really dry and itchy, and eventually fell off, like dead skin after a sunburn.
My dad had it on his scalp once too. He had a few circular patches (~3cm) with total hair loss, which eventually grew back.
Neither of us had that happen again.
My GP simply recommended using superglue to seal the cracks up and that did help!
"It is also possible for emotional stress to trigger an outbreak of hives. There can be a number of hormonal or chemical changes that occur in response to stress.
These changes can trigger blood vessels to expand and leak, causing red and swollen patches of skin."
No doubt, stress has physiological effects, but so does laughter and excitement. Having stress is a normal part of being a human. In reasonable doses it's fine.