Real Dirty Dancing star Saffron Barker has shared a picture of a painful "hole in her foot" with her 1.8 million followers and asked them for their advice.The YouTuber, 21, shared a "gross" image of the injury and was looking for help on what to do about it. She wrote: "Would love for any advice please! My shoulder has popped out and into place a few times now and it's painful when lifting my arm etc.