It's a sight sure to pierce the very heart of any parent.Your little bundle of joy, Pookie, is sick: snorting, spewing, coughing, miserable. She looks up at you with those big, limpid, trusting, bleary, red eyes: What's wrong with me, Mommy? Help me! Fix it!Then, when miraculous relief is not forthcoming, reproach: Why aren't you making me feel better? Why are you letting me down when I love and trust you so? What kind of a Mommy are you?The urge is overwhelming: Don't just stand there, do somet