Riverbee....
"beeswax, and beeswax candles develop what's called 'bloom', a whitish light covering on it........just take a nylon or a soft cloth to a beeswax bar or a beeswax candle and polish it, looks shiny and new again!"
Apis....
"Heat also works, Use a heat gun to warm the candle sides This works well on candles with a lot of details, like pine combs and skeps."