Mine were yellowish dots only in the raw, triangular area of lip. Since so much tissue was missing in this area, the spots were deep down. So, when several layers of skin grew back over time in that raw area, they were no longer noticeable.
But for those who have these spots on lip skin that is not raw, it will still be noticeable since you will not have all this new skin growth to cover it up. If they are located where your lip skin is not raw, they are more at surface of you lip.