Before applying dry heat or cold applications, which of the following actions is necessary?

The action of covering the application before applying it is crucial for several reasons. When using either dry heat or cold applications, there is a need to protect the skin from direct contact with the heat or cold source. Covering the application serves as a barrier, preventing potential burns or frostbite that could occur from extreme temperatures. It also helps in maintaining even temperature distribution, allowing for a more comfortable and effective treatment.

In some situations, a layer of fabric can help keep the application in place and enhance the overall effectiveness by promoting good skin hygiene and reducing the risk of irritation caused by direct heat or cold. Proper coverage is particularly important when treating sensitive areas or patients who may not be able to communicate discomfort effectively, ensuring their safety during treatment.