Why does your dog keep scratching her ears or trying to?

The most likely answer is that she has an ear infection. The inside of the animal's ears will be red and sore. This condition is most common in long-haired dogs with drop ears, such as golden retrievers, springer spaniels, and cocker spaniel, but they can occur with any canine. In this case, the only thing you can do is take her to the vet and get her diagnosed and treated for the problem. To prevent more infections, buy vitamin C powder intended for dogs and follow the daily dosage directions.

It is also possible that there is a foreign body in her ear or a scratch or bite wound. Check her thoroughly and get professional help.