3rd Riddle (with "last week's" answer)!

Hello all! So sorry for the delayed posting of this riddle. The answer to the previous riddle was teeth.

Here's the next one:

Imagine that you are trapped in a windowless building with nothing but a box of matches, three candles, and a ceramic mug. The flood waters are rising and are currently up to your neck. The door is hopelessly locked and there is no one within 500 miles of you. How do you get out of this situation?