Which is the only way to remove excess cuticle around the nail with a nipper?

Trimming is the appropriate method for removing excess cuticle around the nail with a nipper because it specifically refers to cutting away dead or excess skin in a precise manner. When a nail technician uses a nipper to trim, they can carefully and accurately remove only the unwanted cuticle without damaging the surrounding live tissue. This technique helps maintain nail health and aesthetics while ensuring a clean and finished appearance.

Pulling would not be suitable as it could lead to tearing of the cuticle or injury to the nail bed. Pushing is typically a technique used for managing cuticles but does not remove excess cuticle, just repositions it. Filing is meant for shaping the nail surface and is not effective for cuticle removal either. Thus, trimming stands out as the essential and correct approach with a nipper in professional nail care.