What you. Describe as itching might possibly be neuropathy and it may be due to a compressed nerve i.E of the lower back if indeed there is no dermatological explanation for an itch.
TOES ITCH. How long has this been going on? Do you take any medications? Do you bathe or shower before bedtime? What soaps do you use? What laundry detergent do you use? Have you changed it recently? Use a mild soap (dove or cetaphil). Wash linens and sock in all free and clear. No fabric softeners in the dryer.