Do topical pain products really relieve aching muscles? Presenter Greg Foot is joined by Olympic medallist heptathlete Kelly Sotherton, along with consultant rheumatologist Dr Benjamin Ellis and Manchester United FC’s head of physical therapies Prof Michael Callaghan, to test the cooling gels and warming sprays that promise to reach deep into painful joints.

Presenter: Greg Foot Producer: Marijke Peters Editor: Rami Tzabar Sound Editing: Giles Aspen