Reddit reviews Zymox Ear Cleanser With Bio-Active Enzymes, 4 oz.
We found 3 Reddit comments about Zymox Ear Cleanser With Bio-Active Enzymes, 4 oz.. Here are the top ones, ranked by their Reddit score.

Packaging may vary manufacturer updated labelingEffective, non toxic way to manage dirty earsNo harsh chemicals or cleanersLeaves ears smelling freshEasy to use, 4 ounce bottle
It's probably an ear infection. This is common for dogs with floppy ears that drag along the ground as they sniff the world. Your vet can give them a good cleaning and provide you with some antibiotics to clear it up. (Ear infections are quite painful.)
To prevent ongoing ear infections, you can clean their ears with a vinegar solution; but my Beagles hated that due to the strong smell. We use this ear cleaner because it has a very mild odor. Combine a weekly ear cleaning session with some treats, and Beagles will happily comply.
But, yes, vet first to get antibiotics. No one wants their Beagle to have ear pain.
This stuff is amazing:
https://smile.amazon.com/gp/product/B0066VLPGA
You should keep it on-hand if you have a dog with ear problems. This stuff works great for regular cleaning:
https://smile.amazon.com/gp/product/B0014HYCM0
I also second the recommendation for Horizon, they're great there, and fairly priced. Sorry, I'm not sure how much a consult is, but you can call.
I tried the apple cider vinegar washes and painstakingly cleaning the ears of my older aussie who permanently had yeasty ear funk. Nothing worked for more than a few days, and clearly the "source" was still there. Then i found Zymox. Used it before baths and that was that. I still do a rinse on bath day but three years later the yeastiness has never come back. It's wonderful.