★★★★★
There is an enzyme based product called Zymox which works wonders on ear infections. I had a 16 yo dog whose ears were red and inflamed, and after ordering this product (zymox otic hc 1%) it cleared up within a day. Recently I gave a bottle to a friend whose dog has chronic ear infections, and the drugs and cleanings did nothing. She was constantly shaking her head, poor thing was in agony. Within 5 days all shaking stopped. You can order from amazon. Be sure to read the directions, and don't clean the ear first, just apply to dirty ear.