Scalp tends to itch without flaking ... mostly at night, but sometimes during the day. Just feel the need to scratch hard with my nails. Last night throughout the night various parts of my body itched. I remember waking up digging at my lower leg on the left side. Sometimes it is my arms. No sign of a rash. Don't think I've changed products either. It is driving me crazy. I have checked for lice as my daughter had it, but it is not that. And the fact that other body parts itch as well... Any ideas. A couple times I took a 24 hour allergy pill and symptoms seemed to subside or not bother me at night. Could it just be an allergy?