welcome to healthcare magic forum
thank you for your query
i understand your concern regarding your skin problem.
it look like fungal infection
of skin .
it is due to constant wetting of skin.
fungus grow in humid environment.
you need to keep your skin as dry as possible.
you can wear water resistant shoes to keep skin dry.
applying anti fungal powder will help you.
in severe case you need some oral medicine also.
for itching you can take anti histaminic medicine.
better to consult dermatologist
for proper treatment.
i hope i answered your query