3 itchy soft white lumps appeared on the middle of left wrist, sfrom the base of my hand down my arm. What are they? Not hive, I've had those b4

Can't tell. However early shingles may start with itching before the bumps turn dark and painful. Google a picture of dermatome and see if your lesions follow any of the dermatome pattern. If it does, early anti-viral treatment may reduce the intensity and complication of shingles. However if you have had the same lesions b4 at the same location, shingles would be unlikely.