Ay, white spots sa baby's face are usually harmless, a lot of us mums noticed the same thing sa aming babies, and it went away on its own after a few weeks or months, lalo na kung hindi kumakalat at hindi nagsasabing uncomfortable ang baby. But since baby's skin is delicate and you want to be sure it's nothing, I'd really suggest checking with your pedia kahit quick lang sa next checkup para makapag-relax ka ng maayos, ate!