What symptoms indicate a customer may be overexposed to UV radiation?

The presence of redness, blistering, or peeling skin is a clear indication that a customer has likely been overexposed to UV radiation. These symptoms are direct responses to excessive UV exposure, which can lead to sunburn, where the skin becomes inflamed, painful, and may start to blister and peel as it heals. This reaction occurs as the body's defense mechanism attempts to repair damage to the skin cells caused by the UV rays.

This range of symptoms specifically highlights the acute effects of overexposure, making it crucial for tanning professionals to recognize these signs. Properly identifying such reactions allows for appropriate intervention and advice for protection against further UV damage.

While itching and rash, fever and chills, and darkening of the skin can indicate various skin conditions or reactions to tanning, they do not specifically illustrate the acute tissue damage that results directly from overexposure to UV radiation like blistering and peeling do.