Welsh actress Catherine Zeta-Jones, best known for her role in the movie Chicago, for which she won an Oscar for Best Supporting Actress in 2003. Her role as Velma required her to sing and dance – and it's especially the strenuous dance regimes in the movie.

"I had six weeks of training that were incredibly tough but I knew that these efforts were going to be on film for the rest of my life," Zeta-Jones told in Daily Mail.

"The pain wasn't there when I was applying arnica. I had that sticky stuff glued to me for months. It brings out the bruising, darling."

She credits homeopathy for treating her pain and bruises. In an interview with Entertainment Weekly she mentioned how arnica had become her best friend on the set of Chicago.