Just an annoying, embarrassing, cosmetic condition or could it be the clue that helps you ‘crack the case’? There is a surprisingly long list of differentials for this condition but most of us only know a few, reflexively reaching for either B vitamins or anti-fungal creams. Does either make sense? Does either address the cause(s) which we now recognise to be a unique series of risk factors in each individual? Or are we at risk of shooting the messenger and missing the message of Cracking Corners altogether?