I once got an ear infection while vacationing in Tulum Mexico. It needed to be treated cuz there was blood and gunk in my ear so I went to the 'hospital' in town. When I got there there was just a guy at the front desk. I don't speak much much spanish and he spoke not much english but was able to tell him I needed to see a doctor for my ear. He explained there were no doctors there and that he would have to call him in. So I waited a while for him to get there.
When he arrived he took me back to examination area, looked in my ear and got all his supplies to irrigate it with warm saline. I held the little kidney shaped bowl beneath my ear for him to catch the runoff, and my god, what a gnarly mess of blood and crud came out of there.
I was traveling with my family and another family we are friends with. Seeing as our flight was in less than 48 hours I was really hoping that the doctor would tell me I couldn't fly for a few days and I'd get to stay in Mexico solo for a day or two. I already had my hotel picked out, an amazing place I'd stayed in a few years earlier. But alas, he said I was fine to fly. Gave me a prescription for an antibiotic which I got filled at the local pharmacy and it did it's magic pretty quickly.