Talk to Dermatologist on White Patches On Hair And Skull

my daughter have some white patches on her hair even on skull now when she try to itch her hair it gets wound

Could these symptoms be indicative of a larger health issue that needs immediate attention? What are the potential treatments available for her condition, and how effective are they? How important is it to address skin irritation and wounds caused by itching to prevent further complications? How can early intervention impact the long-term outcomes for her hair condition?