One of the most important lessons medical schools teach is one my mom mastered as a teenager left to fill her own mother's shoes: how to figure out who is really sick and needs immediate attention and who can wait (or what we in the medical field call triage). Nothing I learned in med school or since has contradicted what I learned at Bertha's knee.
An earache, known in today's parlance as an ear infection, was treated with sweet oil (which I have only in adulthood come to know was olive oil) on a cotton ball stuffed in your ear. I have no idea why it worked, but my siblings and I can all hear.
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