sure cure

sure cure idiom
A remedy that won't fail, as in Hard work is a sure cure for brooding. Originating in the late 1800s as an advertising slogan (Dr. Keck's Sure Cure for Catarrh; first recorded in 1881), this rhyming phrase was soon extended to other matters.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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