O.C. star Mischa Barton is ok

Mischa Barton was rushed to hospital after accidentally mixing her medication with alcohol.The former 'The O.C.' star, who was prescribed antibiotics for a bout of bronchitis, fell ill at a friend's Memorial Day barbecue on Sunday evening after downing a few cocktails.The 21-year-old actress suffered an adverse reaction to the drugs and was taken to an undisclosed Los Angeles medical facility.Doctors sent Mischa home after just five hours with strict instructions to rest.A representative for Mischa revealed she is now with her family and "feeling much better".The actress contracted bronchitis while partying at the Cannes Film Festival last week.Mischa caused a scene at one lavish bash thrown by jewellers De Grisogono,when she had a dramatic bust-up with model Victoria Silvstedt.Mischa was reportedly unimpressed with Victoria following her around and tried to shake her off, but her attempts did not go unnoticed by the blond Playboy Playmate and the pair had an angry confrontation.