There is a lot of evidence to suggest that over-cleanliness is causing health problems for subsequent generations.... SEE
HERE
Personally I carry Kryston Klinik and use it on bankside wounds, but that's my only concession to Health and Safety moguls.
Having travelled extensively in India (nearly 3 years overseas) and only suffering one bout of food poisoning, I reckon there's a good case for a bit of dirt doing you no harm.
I think I'd have gone crazy as a kid in rural Warwickshire if my mum and dad had been adherents to the current over-protectionist mood...
Viva la revolution Cliff!
Mind you though, I do have to carry a complete medi-kit (including bolt-cutters, defibrillator and rubber ring) when fishing with Lunghi Jim...