Have you ever used a home remedy when under the weather? Some, like honey and lemon (and whiskey) for a sore throat, remain common today. In 2020, other treatments people once swore by seem -- I hesitate to say it -- ridiculous. In the early 20th century, people were desperate to find a cure or treatment for the flu. They tried any number of things that may seem bizarre today, and part of that panic led to the lemon becoming a household staple across the United States.