Exfoliate your lips. Removing dead skin cells not only improves the overall appearance of lips, making them look smoother and more pink, it will also stimulate blood flow to the area, creating a temporary swelling effect. Try gently brushing your lips using a toothbrush to remove the dead skin
Always moisturize your lips after exfoliating with unscented lip balm or petroleum jelly to restore softness.
You can also exfoliate your lips using a damp washcloth or by rubbing coarse sugar onto your lips.