Some of my fellow Skeptics have been discussing a homeopath who offers courses in 'homeopathic first-aid for the home'. Might work for dehydration, I suppose, given that a 30C dilution (that's a 1 in 100 dilution, repeated 30 times) will have nothing in it but water... But I rather think that homeopathic arnica - recommended here for acute trauma! - would have been worse than useless the time that the Significant Other's leg interacted with a heavy, sharp, falling object - give me real-world first aid any day!
Mitchell & Webb said it all, really.