Small white bump on my bottom lip, not on it just right below it, i've had it for about 3 month, no pain, some days its big, some days its small?

White Lip Bumps: Small, elevated white or yellowish bumps around the mouth or lips is a very common condition in adults. These bumps are called Fordyce spots and they are nearly ubiquitous, often present since childhood, and entirely benign. They may cause some anxiety or discomfort due to unsightliness and the fact that they are also common to both men and women's genitals.