[LisaS]

it seems something in my environment is intermittently giving me hives - I'm guessing a contact dermatitis.

First noticed - Fri 5AM - woke with itchy knuckles and found small welts on the backs of my hands and proximal finger joints - mostly right hand.
Used benedryl gel.
Last night: noticed itchy hands when getting ready for bed, hit with gel again, then saw small welts on upper arms and shoulders as if following sleeve area of t-shirt - only on outer arm not inner arm surface. Hit with gel again.
This morning: went out for about 15 mins and while driving home, developed 2 nickel sized raised welts on one knee. Took an oral antihistamine.

suspects:
None - except Thursday I moved a throw for the dogs from one of their beds to a corner of my bed. I obviously handled it, could have knelt on it, could have tossed a t-shirt inside-out on it (sleeve transfer) etc.

actions:
everything is getting laundered and/or vacuumed today.

question:
is there anything else to do to get rid of whatever this allergen is? Am I missing anything?