I mean its not like they have magic powers to make it disappear or if they peel off her skin too much scarring and it would lower “value” as a noble women so the best thing to do is use gloves. And besides she dont have to cover it up inside her home. Only at tea parties or events
It transfered to her through body fluids she could have got blood in her eye of the water she drank was contaminated or because she has scrapes on her still blood could have got on it or got in her eyes
Where the update?