My hamsters aquired awful body odour after weeks of not bathing. Since sand irritated their noses I tried wiping them with a wet cloth but that awful stink persisted - a kind of skunky, salty smell. They scratched themselves all day and watching them itch made me itch all over. That's that - last night they were bathed with soap and water and they looked absolutely comfortable after that. Or rather I felt absolutely comfortable. Try not washing your hair for weeks and then go wash it -- ahh, it is THAT kind of comfort and relief I am talking about.