A heat-generative, steam generation facial sheet that is planar and is adapted to cover a part or the whole of a wearer's face in intimate contact. It has a planar heat generator capable of generating steam upon contact with oxygen in such a manner that the skin surface temperature reaches 34 C. or higher within 120 seconds from the contact with air and the skin surface temperature is maintained at 34 C. or higher for at least 5 minutes.