What is a common method of contact cooling for lasers?

The use of gel applied to the skin is a common method of contact cooling for lasers, particularly in aesthetic procedures. This gel serves to provide a cooling effect to the treated area, which can help reduce discomfort and protect the skin during laser treatments. Additionally, the gel acts as a medium that ensures even distribution of the laser's energy while also minimizing the risk of overheating the epidermis.

Contact cooling is essential when performing laser treatments because it helps to improve patient comfort and safety, allowing for more effective delivery of the laser energy without damaging surrounding tissues. The gel can also facilitate better visibility of the area being treated, as it creates a smooth surface for the laser to pass through, enhancing the overall outcome of the procedure.

In contrast, while other methods like cryogen spray, ice packs, and alcohol pads may offer some cooling benefits, they are not as commonly used in conjunction with lasers compared to the gel, which is specifically designed for this purpose.