I also have chronic high blood pressure, which is controlled with
Azor, so I try to avoid Benadryl
and Claritin, in favor of other medications which are more friendly to hbp sufferers.
I still wonder if it could be a yeast infection, as the rash came on a day after a long flight where I was forced to sit with my arms crossed, as the person sitting next to me was very obese and pushed well into my personal space.