The prince was instantly on his feet and rushing towards the fallen waterbender, only to have this path blocked by the demon. This time, Zuko kept the fact that he couldn't bend with the sunblock in mind when it charged, jumping out of the way of the inital onslaught and implemented his knowledge of martial arts to deflect and retaliate.
That only got him so far, though, as the demon proved to be faster and stronger, grabbing Zuko by his left foot and hoisting him up in the air. It's red eyes squinted at the prince and it let out a bored sort of noise, as if to show that it was no longer interested in the firebender, and promptly tossed him aside.