I too have had a similar thing for a few weeks, this started out of the blue, (I had been in the garden that weekend! ) and
ended up with these horrible itchy bumps on
the palms of my hands, fingers and feet. I tried all sorts, antihistamines, hydrocortisone, steroid cream from the doc etc etc
Sudocream helps with itch, but what has actually started to clear it up within 48 hours I have to say is BioOil.