CARDS › Get Well Greeting Card/ Diarrhea "Laughter is the best medicine." Frank & Funny Image 1 of 2 Image 2 of 2 Get Well Greeting Card/ Diarrhea "Laughter is the best medicine." Frank & Funny $3.95 Sold Out Inside: Unless you have diarrhea. Sold Out Added! Inside: Unless you have diarrhea.