Which of the following is a sign of skin irritation after waxing?

Redness is a common indicator of skin irritation following a waxing procedure. When hair is removed from the follicle, the skin's surface can become inflamed, leading to erythema or redness in the area. This reaction is part of the body's natural response to the physical trauma caused by waxing, which can include temporary irritation and sensitivity.

In contrast, softness, glow, and smooth texture are typically desired outcomes after waxing, indicating that the procedure has successfully removed hair and left the skin in a healthy state. These outcomes reflect the exfoliating benefits of waxing, contributing to smoother and more radiant skin. Hence, the presence of redness stands out as a sign of irritation, while the other choices highlight favorable results of a waxing treatment.