She does try. It's difficult, as long as she feels like she's being pulled in two different directions; her desire to save her sister and preserve her Dalish heritage, and the increasing kinship she feels for the Wardens. She may not ever fully embrace her new way of life, but there is an attempt.

"It's nothing. I used to make the same salve for-" she pauses briefly, frowning at herself before continuing with some vague hesitance "The hunters. Humans attempt to sell something similar in their markets but it's a poor imitation. This will help."