Too Much Perspiration, Too Little Time? The final tip is to grab a hairdryer if the oil is out of control. If you're getting ready in hair and makeup and you start to perspire, Martin explained, "as odd as it might sound, put a hair dryer on a light setting and gently blow it over your face to dry it. It is far more effective at halting perspiration than trying to cool yourself with a fan." Image Source: Pexels / Gratisography