In January 2002, Mustaine went to the hospital because he needed to get a kidney stone removed. After the surgery, he was given medicine to stop his pain, which made him addicted to drugs again. After leaving the hospital, Mustaine went to a treatment place in Texas to fix his drug addiction. He fell asleep with his left arm on the back of a chair. This hurt a nerve in his arm very badly. He could not control his left hand very well.