Samething happened to me in Bonaire. I went to the local clinic, and got some drops, but diving was over. I had alcohol and hydrogen peroxide, the alcohol burned like hell, the worst pain I have ever experienced. I used up all of the drops and my ear was still tender as hell, so I visted my regular ENT doctor. He said, I do have a pretty massive outer ear infection. He prescribe a different kind of drops, but wanted to see me in 10 days. I used the drops, but I also did my own research, found a website that said to use 1 part of alcohol to 1 part of Vinegar. Instead I used 1 part hydrogen peroxide to 1 part of vinegar (link below). I swear after 2 days of using the hydrogren peroxide/vinegar solultion, my ear was not tender at all, and I could use alcohol, but I kept using both for 10 days. When I went back to my ENT doctor, he said the infection is gone, and he could not tell I even had an infection. I talked to my doctor more about swimmer's ear, and he said it can be caused by bacteria or fungi. He told me using vinegar, alcohol, or hydrogen peroxide helps with preventing swimmer's ear.
I am going to Sipadan in the fall, I am planning to take a vinegar/alcohol solution, and vinegar/hydrogen peroxide solution, alcohol/hydrogen peroxide solution, straight alcohol, vinegar and hydrogen peroxide. I am planning to use the alcohol/hydrogen peroxide solution after every dive, and use the vinegar/alcohol solution 2x times a day. I am bringing the straight stuff, just incase if I come down with swimmer's ear again.
But if any doctors know of a better home solution, please let us know. I would like to have a solution ready for use after getting swimmer's ear, something that can eliminate the infection overnight, if caught early.
Swimmer's ear: Prevention - MayoClinic.com
What about the Doc Proplugs? Do they help with preventing swimmer's ear?
Doc's Proplugs: The Doctor's Choice for Ear Protection