I'm not squeamish about many things but for some reason reading about peoples' nails being ripped off make me feel quite nauseous 
I was trying to find out if I need to bring dd to the doctor about her thumbnail. She caught it in the car door over a month ago and it gradually turned from blue to black over about a week and a half and has only started growing out this week finally with a strip of healthy nail at the cuticle. I noticed this morning that the nail over the hematoma is flaking off and the dried blood is exposed and coming loose so I think he nail bed will be exposed. Should I:
a) get it looked at
b) cover it with a plaster
c) put cream on it
d) ignore it