Either
a) An unpleasant patch of skin on one's nob
Or
b) An unpleasant person who the experience of spending time with is similar to a severe rash covering one's nob. Someone you can't get rid of easily.
She is beautiful, spoiled, short, kind, lucky to have a friend named Norashikin because she is loyal and caring, she always hides her own problems, can pretend to be happy in front of people