PTD nº 398 - Precisa tirar as guias para ir ao banheiro?

Here are today's questions: 1. I see my fellow mediums that when they are in the ritual and need to leave the group to go to the bathroom, they ask permission from the head of the house and immediately look for a cambone (assistant) or another medium to hold their guides (beads). Isn't this inconsistent, since the guides serve exclusively for the protection of the medium, and the moment when the medium most needs protection is precisely when they leave the group for any reason? 2. From an Umbanda perspective, what is the spiritual and energetic meaning of autoimmune diseases such as vitiligo and others? 3. Can a Pomba Gira (female spirit) appear in the Bahian group?