For several months now, I have had an ongoing itchy rash on the back of
both hands, close to the area of my thumbs. For quite a while, I have
been racking my brain trying to work out what might be causing it. My
best guess was washing up, but I have always done at least my share of
that. Then I realised the rash appeared when we swapped from Fairy, to
Elbow Grease liquid - as it seemed to be just as good and a little
cheaper.

On Thursday in the interests of experimentation, I picked up a 2L
bottle of Fairy and have used that in the days since then (SWMBO is
away). The rash now seems to have almost gone.