I don't think so. My family has such noses, and, when photographed from the front, they look fine; it's only when photographed from an angle that the bump appears disproportionate. I think for this role there is an effort made to have lighting and angle contrived to to make her nose appear extra bumpy. They might even do a little fish-eye lens effect in post-production.
The actress is the daughter of actor Jim Carter - the butler Mr Carson on Downton Abbey. It appears she inherited her Dad's looks.
