Dogs, ear infections...

https://www.amazon.com/dp/B004E2Z4QA/?tag=joeychgo-20

Hope the link works. This is the stuff our vet gave us. Please keep in mind that Mita does not have an ear infection, just a ton of crap from digging etc.
Ernestina fills a container with fairly warm water and puts the container of it in it to warm it up some. After it warms up she just gives Mita a squirt or 2 in each ear, massaging the ear canals right afterwards (you will hear it squishing it around when you are massaging the right area). She was doing it once or twice a week, but latley MIta has not been shaking her head any so. For a while Ernie was just using the stuff at room temperature...which normally resulted in Ernie wearing it as Mita shook her head as soon as the liquid got into her ears. But warming it up stopped Mita from shaking her head.