Interestingly, my husband had this and nothing seemed to work – until we took to taking a walk along the beach in wet sand each morning one holiday – this cleared the problem up and it hasn’t recurred (I also made him throw out old shoes and replace them with clean – and washed all of his socks together after a good soak in Napisan).

i didn’t know that there was a natural remedy. maybe talk to the chemist and see what they recommend