Noma
Did the doctor use internal meds along with topical? When our ears itch, we use a small amount of alcohol and wipe the outer edge of the ear canal or one of the OTC antifungal creams/salves. But with a perforated ear drum, your mother must be careful before surgery. Eating yogurt with acidolophlus is supposed to help with candidia. Or taking acidolophlus capsules may work faster. If she isn't getting help with her doctor, I would recommend she get a second opinion.