He’s six months old and frequently getting dirty. I have a special shampoo, made to keep mats and tangles at bay, but that’s not the problem. The problem is that he’s constantly getting himself filthy. I swear if we were in the middle of a drought, he would find a puddle of mud and bathe in it. But I read an article that said I should bathe a shih-tzu every other week. I didn’t that that could possibly be accurate, because wouldn’t it dry out their skin?