Final answer:
Short strokes are recommended during the exfoliation step of a microdermabrasion treatment, specifically when moving from the middle of the upper lip to the outer part. This method provides better control and avoids skin irritation.
Step-by-step explanation:
During the exfoliating step of a microdermabrasion treatment, short strokes should be used from the middle of the upper lip to the outer part of the lip. This precise technique helps to ensure that the microdermabrasion is performed effectively, targeting the area without causing unnecessary irritation or stretching of the skin. It is important that the aesthetician or person performing the treatment uses these short strokes for maximum control and effectiveness during the exfoliation process.