I'm not a Doctor, but I agree with the concept. There may be individual differences that only a doctor can address? (It's a question.....I don't know the answer) So if that is true, perhaps an over the counter solution would be inappropriate?

Hell you can get all the rubbers you want for nothing at the county health department........what's the difference? OTC is dandy, if healthful.
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Agendas kill truth.
If it's a crop, plant it.