I noticed a thread with an ear cleaner
1/3 cup rubbing alcohol
1/3 cup white vinegar
1/3 cup witch hazel
10 drops tea tree oil
Mix and store at room temperature in a plastic squeeze bottle. For affected ears squirt about 1/4 teaspoon into the ear twice daily for a week, should clear it up. Afterwards use weekly to prevent recurrence.
It occurs to em that with so much experience around there may be other ideas?