When I was in Scotland, I waited about a month for an appointment, then got expensive allergy meds for dirt cheap, but I basically ended up prescribing them to myself. The doctor in my consultation didn't know enough to distinguish one eczema med from another in the dictionary of prescriptions she was referencing on the spot, so I read over her shoulder and told her what to sign for.
In the USA, I went to a private allergy specialist armed with extensive test results from five years ago, only to spend half the appointment being told by the doctor that his "competition", another allergy specialist in a completely different state, was a quack, he had no evidence I was allergic to gluten, and I should immediately start eating wheat products again. I walked out with different pills than the ones that had worked for me in the past, because a different drug company had been courting this doctor and he insisted I try the new pills first "to see if they work", even though both types of pills would be equally available from pharmacies.
Different systems, different flaws.