Designer Marc Jacobs has checked himself into rehab after a recent relapse. Following his show at Paris Fashion Week, the 38-year-old made the decision to seek treatment for drug and alcohol abuse after being sober for seven years. "Marc made the right decision," his business party told Women's Wear Daily. "He'd been sober for seven years. When he relapsed, he wanted to deal with it right away... According to the experts, such a relapse isn't uncommon. Thankfully, Marc recognized the problem himself and chose to deal with it. Obviously, our prayers are with him."