Wildlife Spotting

Large black fuzzy caterpillar, I didn't even realize that he had any brown marks on him at all until he was wrapping himself around the leaf and I was taking a close up. The markings look like they are on his skin, not in the hair. But the lower bottom hairs do have a reddish orange tint to them in the light. It also has a shiny black head. My son says its a poisonous asp and you have to go to the hospital if it stings/bites you?