I am also having same problem, Better you use white petrolium jelly not lip balm.
Vaseline comes with white petrolium jelly products, but there are two categories one is in white color and other is light yellowish color. Don't use white one that is useless, use the light yellow one its little thik but very very effective. Use 2-3 times a day must use before you sleep.
If still you face problem, let me know.