It's the sort of place where - incredibly - you can't just walk into a doctors office, tell them they're not busy and demand an appointment "now or the next day". If it's non urgent then book an appointment at the earliest opportunity (or use the app), and if it is urgent go to Santa Pola where they were directing you, which is a ten minute drive! Had you driven to Santa Pola you'd already have the medications instead of whinging on here that the whole country isn't set up for your non-tax paying benefit.