No. Poison ivy is a weed that usually grows in shady or cool areas (often near water). It does quite well with little sun at all.
Yes, all plants obtain energy from the sun.
Avoid exposure to the sun. Sun exposure may cause scaring in healing tissue. So you can go out, but keep it covered.
Yes, they are a "full sun" type of plant.
You need a place with a lot of sun and water.
a little
Not unless they want cancer.
They will grow in full sun but prefer slight shade.
Sun burn, burns, allergic reactions, different weeds such as poison ivy, and many more things this is just the ones i can think of right off hand if this is for a medical reason i would suggest webmd.com
the holly and the ivy
uv sunscreen
Try taking the ivy plant out of the sun and taking all dead leafs off.
You need a little. A lot burns you, and the UV damages your skin.