Tracy Marelli said her daughter, Sophie Russell, went from being "a pretty young girl" when she first took the party drug aged 18 to resembling "an elderly lady" by the time she died at the age of 20.
Tracy, from Lincoln, is now calling for Ketamine to be reclassified from a class B to a class A drug.
For help, head to: https://www.nhs.uk/live-well/addiction-support/
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