Redness from rubbing and a whitish spot on the thumb after driving â this is almost certainly a friction/pressure scar, not vitiligo. Vitiligo starts as a flat, painless, non-itchy depigmented patch and doesn't appear suddenly from friction. Rubbing a healing area causes redness and can make the skin look lighter temporarily.
Next Steps
Stop rubbing the area. Apply a gentle moisturiser (coconut oil or Vaseline). It will heal on its own in 2â3 weeks. If the white patch spreads beyond the original area over the next month, consult a dermatologist. Consult me on Practo for reassurance.