[ceejayoz]

As with antibiotics, OTC anti-fungals are often ineffective due to resistance from over/improper use.

[Symmetry]

If that's the case then it sounds like a higher price is a good thing.

[ceejayoz]

No, that's why we have prescriptions, and education for doctors and patients on when to get one.

Making them expensive means poor people don't do their full course of treatment because they can't afford it (or want to save some for next time), increasing resistance.