A recent study Dr. Brad Radu at the University of Alabama at Birmingham indicates lip balm can have harmful effects. See further info below. LBA will be monitoring this study closely and will bring you further updates. Overuse of a balm or jelly creates a crust on the lips which traps bacteria and fungi creating a state of permanent inflammation. The lips become irritated and the temptation is to apply even more balm, which just exacerbates the problem. To avoid this condition, known as cheilitis, it's a good idea to leave off lip balms and jellies every now - rather than routinely applying them each morning - so you give your lips a chance to 'breathe' naturally. girls, what do you think??