For about 9 weeks I've had generalised itching but didn't notice a rash , recently I've noticed one , a pin *** rash baring in mind I also have lots of Campbell de Morgan spots but these seem different , I've been going back and forth to drs for blood test etc , (white cells where slightly raised and then fine again) and keep asking the drs what could be causing the itching , as I've thought i was allergic to something and the things I've thought it may be I've cut out using eating etc and still it carries on , my auntie had leukaemia and I'm wondering is there a specific test I need to ask for or would it show up in a fbp test thanks