Smith struggled with shingles during cancer battle
The Oscar winner underwent chemotherapy in a London hospital in 2008 to treat breast cancer.
She battled through to return to work on the final wizard movie, Harry Potter and the Deathly Hallows, last year (09), but was left weeping on set - because the skin rash she caught on top of her cancer was so painful.
Smith tells Britain's Sunday Express, "The cancer was hideous. It takes the wind out of your sails and I dont know what the future holds... I had shingles, as well, on my head. I have never known anything quite so painful. I was doing a lot of crying.
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