hello my father is in saipan and working in a mobil.he is suffering from itching in his right foot for years.last year he had his check up and the doctor suggested to have some biopsy.the result is good because according to the doc it is non malignant and it is just some kind of fungal infection so he gave him some topical anti fungal ointment.but unfortunately it did not heal and he already had them in his left foot.is quadriderm a good topical ointment to use?