In the US you'd need an appointment, insurance paperwork or no insurance and then the actual meds might be $50-$80, if your doctor insists on prescribing the latest pharmaceuticals.
"I think this is infected"
"Looks like it. Here you go!"
Cost is 1€.
Whether they are prescribed correctly is another story (France used to be very into prescribing antibiotics for everything, this changed in the last 20 years)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8315858/
>These analyses included several types of prescribing decisions, finding that physicians who received industry payments were more likely to prescribe drugs made by the companies that had paid them over alternatives, had higher prescribing costs, and prescribed relatively more brand-name products over generic alternatives. The positive results of these studies spanned a broad range of physician specialties and drug classes.
The pharmaceutics have to provide a generic if it exists, even if the prescription is for another drug (except if the MD explicitly states that the specific drug must be used, with an explanation and they have to report this)