I'm not familiar with the ingredients in this. Search for ear oils and there might be herbal supplements that help clear infection. I've never had any success treating an ear infection naturally. The last one I had was brutal in both ears. Took going to the doctor three times and at least twice on antibiotics. I'd search on Amazon even if you don't shop there because you can see what's the most popular.

Herb pharm has good products and I think they have ear oil. Many ear oils are for prevention and not treatment.

Garlic oil is good it's usually in olive oil. I would buy it instead of trying to make it. Cooking oils isn't what you need.

https://www.herb-pharm.com/products/mullein-garlic-oil

I keep some products in this brand on hand just in case.

https://christophersoriginalformulas.com/

Oil of Oregano is great for infections and also a preventative.

https://greatist.com/health/benefits-of-oregano-oil#gut-health