Greasy ear fur

[skKi]

I understand that my water dog is meant to have an oily coat; it's manageable with a monthly bath. His ear fur, however, is almost always oily. Short of washing his ear region every few days, is it possible to keep the greasy at bay somehow?

 

[DogKisses]

Lacey has long ear hair and it gets a littly oily too... I use unscented baby power, just a tiny bit and I brush it out with a flea comb.