hi, i have a dry patch on the top of my lip. it started off about 2 months ago as a small discolored dot, then progressed into a darker patch bigger patch (<1cm wide). Now, it looks dry and and slightly flaky, and feels weird when i touch it with my tongue, but i can't really pick at the dry skin. it also feels sort of heavy, not numb or slightly tingling (not like pins and needles) but like i can feel something there. also when i stretch the skin i can see white spots behind it.
what is it, and what can i do to treat it, tried moisturizing with Vaseline constantly, but doesn't help. Could this be a sign of lip cancer?
any advice would help. thanks.