Description
- It is a greyish black coloured shiny stone which is rubbed on the hard surface like stone or a tile.
- Itis called as Kohal in Tibb-Unani Medicine. Kohal is the sufoof (fine powder), which is applied on the eyes or to the inner surface of the eye lid, with the help of a thin stick or either mixed with water or oil for the base.
- Kohal is the finest powder form of the medicinal preparation used externally to strengthen the eyesight and to cure other eye aliments.