The third format is a variation on showing the problem. This time, you employ a "symbol, analogy, or exaggerated graphic" to represent the problem. In this Theraflu ad, for example, the problem is that a man's flu symptoms make him feel like an ogre. Thus, the ad portrays him as a literal ogre. When the man takes Theraflu, he returns to human form.
This format has become very popular of late, as computers make it easier to create outlandish graphics, animations, and special effects. One familiar (and much-hated) ad in this category is Lamisil's "Digger the Dermatophyte" spot, featuring an animated, fungal beastie who lives under your toenail. Another example—a personal favorite—is the Levitra erectile pill ad where a guy attempts to throw a football through a tire. The football keeps bouncing out, and the poor guy's face is a portrait of futility. (When he takes Levitra, he rams the football through the hole—straight and true, again and again, with a great big smile.)