Which treatment should be part of the last presurgical procedure?

The last presurgical procedure should focus on soothing and preparing the skin to ensure it is in optimal condition before surgery. Soothing treatments help reduce inflammation and prepare the skin barrier, making it less sensitive to any stress from the surgical process.

Hydration is especially important as it supports the skin's natural healing process. Using cool steam can assist in calming the skin, while high frequency can enhance circulation and aid in reducing bacteria on the skin surface, which is critical before a surgical procedure.

In contrast, exfoliation with enzymes, application of topical antibiotics, and deep cleansing facials may be more beneficial in earlier stages of skincare leading up to surgery. Exfoliation can cause irritation, and while topical antibiotics can be useful, they typically follow operations to prevent infection rather than being part of a pre-surgical regimen. Deep cleansing might also disrupt the skin barrier at a time when minimal irritation is key. Therefore, the soothing and hydrating approach is most appropriate as the final step in pre-surgical skin treatment.