Normally Tulsi has very little outer application. In case of deep/light spots on face due to pox etc mix Tulsi powder with yoghurt or buttermilk and rub on the face, it will reduce the deep one and eliminate the light one. It is antifungus, antibacternal, antiviral, antiseptic and details as given in Tulsi details in this book. It is insect repellant. It reduces weight when teken with curd/ yodhurt/ buttermilk.