Mycoderm is an antiseptic, anti-bacterial and anti-fungal dusting powder for external infections of the skin, mostly severe fungal infections. It costs around Rs.75 for a 150gm pack and is available over the counter without a prescription
However, this is not something you can apply regularly though - for those prone to sweating. This is a pretty strong medication, and on sensitive skin, it will nearly burn out the skin with the infection. It basically dries out the infected area, so the upper layer of the skin dries off and gets replaced by new skin.
But at the time of application, it may result in a mild to severe burning sensation. This won’t suit all skin types. Suggest not to use this unless prescribed.