Historical clue formulations

• Cooler in a cooler — 2026-07-07
• Remedy for swelling, perhaps — 2024-05-07
• Traditional hangover remedy — 2009-01-18
• Old-style hangover remedy — 2007-04-22
• Swelling shrinker — 2006-01-17
• It may lead to cooler heads — 2005-09-02
• First-aid item — 2005-06-26
• Swelling reducer — 2003-09-16
• Pain reliever — 2003-03-30
• Sore ankle application — 2001-10-14
• First-aid item — 2000-10-15