Kelly Osbourne opens up a great deal inside the September 2013 issue of Cosmopolitan UK. Opening up on her drug addiction past, Kelly reveals some delicate details, including that her mother once locked her in a padded room to try and scare her:

“My mom even had me put in a padded cell once to scare me.”

Kelly, who says she entered a total of 7 rehab facilities, realized she needed to turn her life around when she began to lose friends and was frightened when her mother was diagnosed with colorectal cancer. She shifted her behaviour and became her mother’s nurse through that time:

“I was faced with the choice of a career or spending what could have been the last days of my mother’s life with her, I became my mom’s nurse 24/7. I gave her injections and medicines when she had seizures. I even had a parking space at the hospital with my name on it. I thought I was going to lose her – it was awful.”

Take a look inside the issue further through the video above!