This is really irritating -

[packman]

"the (research) team found that CD1a – a protein that plays an important role in our immune systems – triggers a skin-based allergic reaction when we come into contact with urushiol, the allergen that functions as the active ingredient in plants like poison ivy, poison oak, and poison sumac."

Which may lead to:

"new treatments to combat minor skin irritations as well as chronic inflammatory skin diseases like psoriasis, eczema, and rosacea"

I remember my uncle clearing out some brush and burning weeds containing poison ivy. Landed him in the hospital in an oxygen tent and almost costing him his life. And who can forget the calamine pink lotion over your arms and legs.

?t=2


http://www.sciencealert.com/scientists-just-figured-out-why-poison-ivy-makes-us-itch-so-much