Thanks for using healthcaremagic
I would suggest you to treat the bacteria and fungus and the excess sweating which causes the organisms to flourish .
The excess hydration / sweating should be brought under control with aluminium chlorohydrate available as aldry lotion .
You can treat the bacteria by application of fusidic acid
( available in the pharmacy as fucidin
and you can treat the fungus element by specifically using the anti fungal powder called fluconazole
powder and not any talcum or other shoe powders.
Thanks and take care