My daughter is considering having rhinoplasty when she finishes high school next year. Her problem is both the nose tip and the c shape (personally, I think that part is fine). The main problem is the tip, where she seems to be growing more cartilage that is becoming pointy looking in two distinct dots on the tip. I don’t know if that makes sense, but is that something that can be corrected with rhinoplasty? It seems like the little points are right under the skin and are about to poke through, so when you look at her nose from either above or below, it has a squared off shape.
I’d be happy to see and examine your daughter’s nose. From your description it sounds like she has thin skin and strong misshaped tip cartilages (LLC). These can be improved and adjusted with a rhinoplasty. The c-shaped deformity may be due to a deviated a septum and it would make sense to correct everything at the same time if it is significant enough. If its subtle then it can be left alone if no bridge work is needed.