Visiting the doctor in Costa Rica

As I have mentioned, I have been battling an outer ear infection for the past few days. When the Witwers were still here Brian hooked me up with and antibiotic and a recommended ear drop concoction that the pharmacist gladly sold me. But, two days later, my ear was worse, I could barely hear and it felt like water was permanently trapped in my ear. I decided to go to the doctor, a first for me in foreign travels. It was easy. I knocked on the door that said Doctor and was immediately seen by Doctor German Enrique de Jesus Moreno-Rojas. Upon looking into my ear he said "this is very bad" and started speaking to his assistant, who was a teenage boy with presumably no medical education whatsoever, in Spanish. He explained my ear was badly infected and that if I didn't get it taken care of asap, a part of my ear may form a hole in it, which did not sound good. $200 later I was out the door of the doctor's office and the pharmacy with 5 prescriptions including twice daily antibiotic shots one of which he would administer to me and one of which I need to administer myself at 3 am this morning, in the buttocks. First I need to mix the antibiotic cocktail consisting of a glass vile of liquid which needs the top broken off before it is mixed with a powder. Next I need to make sure that I don't hit an artery (didn't know there were any down there) and inject myself in just the right place. All this in the middle of the night. Wish me luck, I am totally nervous. I should be better in 2 to 3 days and back in the water to continue my surfing lessons.