So my lab mix, Libby walks around shaking head to the right every now and then so I looked in her ear and there is dark brown waxy build up or possible ear mites. I dont know how to tell the difference. Every day my husband and I will use toilet paper to wipe out all the "stuff" and there is so much on it. Then I put a ear mite liquid stuff in her ear let it sit a bit then use cotton balls to get the excess out. It looks almost spotless in her ear after we do this! But by the next day she starts shaking her head again and her ear is full of wax all over again! Any suggestions?