You just apply a tiny dab over your infected skin areas. It is available in the local pharmacies and it costs me RM9 for a small tube.
For your information, this ISODRIN is a controlled medicine, which means you have to buy this anti-fungal cream from a proper pharmacist, as it has to be recorded in the prescription book.
When you apply it on your skin, you have to be very careful not to get it onto with your eyes. Additionally, it is advisable NOT to used by pregnant women or those who are lactating.
*Disclaimer: This is NOT a professional medical advice. It is only my personal experience using this mentioned cream. Check with your doctor first before using this anti-fungal cream.