what makes my lower part of my legs itch
The exact cause is not known, but could be related to an allergy to sweat itself. Sweat triggers the release of histamine causing itchiness in the legs or other parts of the body. It may also present with warm skin and small (up to 2-3 mm) bumps, which usually persist from 30 minutes to 2 hours. Some people may respond with a positive patch test to their own sweat.