ive had this problem , and i ended up seeing my Doctor , and she said it was eczema and she asked me what i had been doing and i told her i was dealing with a climbing rose, it turned out i was allergic to the soil in the pot.

No it is not unusual to be allergic to plants etc, feverfew is another plant some people are allegic to.
So you are not the only one to suffer with this skin problem.
I use Avons Plant Spa hand cream on my hands and arms and it works wonders