(HealthDay)—Blunt cannula subcision (BCS) is more effective than Nokor needle subcision (NNS) for acne scar treatment, according to a study published online March 9 in the Journal of Cosmetic ...

Subcision is a minor in-office surgical procedure that’s used to treat acne scars. It involves inserting a small needle into your skin to release the acne scar from the underlying tissue. This allows ...

A cannula is a thin tube that doctors insert into a person’s body cavity, such as their nose, or into a vein. Doctors use them to drain fluid, administer medication, or provide oxygen. A person can ...