The Essential plan from Nationwide Mutual Insurance is for travelers planning trips on a budget who don't want to sacrifice coverage. Coverages include Trip Cancellation and Interruption, Medical, Emergency Medical Evacuation, and Assistance Services.
To learn more, see the Nationwide Essential trip insurance product page.
In event that you were treated by the ship doctor and were billed for the treatment/medication, you would be required to pay those expenses out of pocket and file a claim for reimbursement. Symptoms of an ear infection are certainly something to seek immediate treatment for, however, it is not typically an example of an illness or injury that would result in a guarantee or advance of payment from a travel insurance provider.
Please let us know if you have any questions or concerns by calling 800-487-4722.