Hairy, floppy ears are adorable, but they leave those breeds more prone to ear infections. A lot of it is due to excess moisture, which enables yeast and bacteria to thrive. I have a cocker spaniel and the vet gave me doggie ear cleaner and said it's okay to use cotton swabs and cotton balls both inside and outside of her ears because it's that important to get the whole ear clean. He also said it's okay to put some rubbing alcohol on a cotton ball or swab and rub it into her ears when it's been raining for days, or she's had a bath because the rubbing alcohol will seep into the canal and dry up the excess moisture. If you just do it every once in a while it won't dry their ears out. Just don't use the same cotton ball or swab on both ears or you run the risk of cross contamination. I only bring this up because I made the mistake of assuming my cocker spaniel's scratching was due to allergies. I still feel guilty about how long I let her suffer - switching foods, applying creams, bathing her with a special shampoo, taking her for cortisone shots. The poor thing needed an antibiotic and for me to learn about ear hygiene for hairy, floppy, adorable ears.