I'm sorry your VK is sick... I hope he/she feels better.
One of mine threw up little chunks of troll all over the house yesterday. I've been following her around with a Bissell spot cleaner, but troll is very difficult to get out of the carpet. I may have to drag out the big Bissell.
Chatty is doing better now that she's on beta-blockers.
The Bissell won't do it for Troll spots. You've got to go heavy-duty...Rent one of those Turbo-Troll-SteamVacs and buy Troll-Strength Febreeze (sp?)...And get it fast. Once it sets, you just can't get rid of the Troll smell.