Should she glow?

[Inziladun]

Originally Posted by Galadriel

Then again, as a lieutenant, or whatever Tauriel is, I assume she has some basic first-aid training. Not sure if that includes healing with athelas, though.

In the FOTR book, Aragorn says of athelas that it "grows now sparsely and only near places where [Men of the West] dwelt or camped of old; and it is not known in the North, except to some of those who wander in the Wild".
I doubt Tauriel, or any of the Mirkwood Elves, ever came in contact with athelas. Sounds like more PJ finagling to provide filmgoers who haven't read the books with more "continuity" linking the new films with LOTR.