answer:I have similar issues on hot days; it might just be the heat that you’re putting through the skin. Nullo’s Itchy Scalp Remedy is quick, effective, and cheap: 1. Take fingers 2. Apply to scalp. 3. Stroke fingers along affected portions of scalp until irritation subsides. You might also try cooling off your head. My favorite method involves digging a space out of the freezer and laying my head down in it; others involve kitchen sinks, ice packs, fans, etc. Dangit, now I’m all itchy.