I really don't know. Maybe it's part of the virus you have. I suggest oatmeal baths, Sarna lotion, and Benadryl 25 milligram capsules at bedtime. If you get a rash, or if the itch lasts 5 more days, you should see a doctor. But I think the itch will resolve on its own--rapid-onset symptoms usually do.
Best.
Dr. Rockoff
Shannon
I have looked online at other medical forums, and not really found any further information except that it could be a sign of some deeper medical problems.