Kasthuri manjal is also known as Cumma aromatic or wild turmeric. Among various turmeric varieties wild turmeric is best for external application. It is also effectively treats the skin ailments such as eczema, acne and insect bites. Unlike regular turmeric, Kasthuri manjal does not stain in the skin and it is very fragrant. It is only used for external applications.
It posses strong anti-bacterial and anti-septic properties which is effective for acne treatments.
The turmeric should be used with yogurt or milk, if one has sensitive skin. The people with oily skin can mix it with rose water.