What should be monitored closely when using hot towels on the skin?

When using hot towels on the skin, it is crucial to monitor skin temperature and sensitivity closely. This is because applying heat can increase blood circulation and open up pores, making the skin more receptive to products or treatments. However, the skin can also become easily irritated or burned if the temperature is too high or if the treatment is prolonged.

Sensitive areas, such as around the eyes or on inflamed or compromised skin, require extra caution to prevent damage. By keeping a close eye on how the skin reacts to the heat, practitioners can ensure a safe and effective treatment experience. This vigilance helps in avoiding adverse reactions like burns or excessive irritation, which may occur without proper monitoring.

Monitoring humidity levels, skin's alcohol content, or the type of facial moisturizer used is less relevant in the context of heat application from hot towels, as these factors do not directly impact the immediate effects of the towels on the skin.