Historical clue formulations

• Dermatologist's case — 2013-12-27
• Athlete's foot, e.g. — 2012-12-11
• Skin woe — 2012-08-14
• Skin problem — 2006-04-17
• Skin ailment — 2004-10-17
• Skin problem — 1998-07-29
• ___ pedis (athlete's foot) — 1997-02-04
• Athlete's foot — 1994-06-09