I had a spider crawl in my ear, got out but I was left with an ear infection?

Hello my name is (…) and about two weeks ago I had a spider crawl in my ear. It finally got out but I was left with an ear infection. They gave me neomyosin polymyxin b with hydrocortisone eardrops. It said to take three drops in the left ear three times a day for 10 days. Me being stupid and busy with three jobs I was only able to take one to two drops about 1 to 2 times a day for 10 days. Now I’m done with the 10 days in my ear infection is back. What it be OK if I restart taking the antibiotics? The right way? My ear is hurting so bad