Personalized Girlfriends Best Medicine Drawstring Bag. Cute Drawstring Bag - Royal Blue for girlfriends with daisies says GIRLFRIENDS ARE THE BEST MEDICINE. Perfect gift for your BFF, the girls in your book club or bible study. A durable and versatile cinch bag built to handle daily use. . With its lightweight design and reinforced corners, this pack is perfect for the gym, travel, or everyday activities.