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.
hi there is a lip balm called "BIOLINE LIPCARE".Available in all medical shops....try using that.it will be very helpfull for u...strawberry flavour will be good and also it will be thick.it will soften ur lips too.
I got one more point that is , must wash your lips properly before you go to sleep and put a petrolium jelly or moisturiser in the night, that gives energy to the skin and tomorrow morning first thing first wash your lips properly and let it feel some air and sun, that energises the lips, before leaving home use petrolium jelly.