House

Lyla does not have an ear infection. The doctor hypothesized that when the nurse at daycare noticed Lyla's red ear, it was red because she had been crying. Apparently when some babies cry, their ear canals turn red. Take a moment to ponder this.

Done pondering? It's occurred to you, then, that a red ear can cause crying, but crying can also cause a red ear. Here's an analogy in case you're studying for the GRE.

Red ear : Crying

A. Doctor : Nurse
B. Lyla : Godzilla
C. Chicken : Egg
D. Peanut butter : Tuberculosis

The answer is C because of the eternal debate over which came first.

Incidentally, the doctor also theorized that teething might be the root (pun intended) cause of the whole deal. It would explain the fussiness and the ear tugging, both of which are also symptoms of ear infections. Plus, I should mention that Lyla's diaper art lately has been unusually watercolor-like.

Too much information? Well anyway, that's a symptom of ear infections, too, but it's also a symptom of teething. If she's teething and therefore swallowing a lot of saliva, then it can thin the consistency of her...paint.

Bottom line, this would make for the most boring episode of House ever.