Do get into detail, please.

*Sigh...* Alright.
So in order to support her skin's vibrant ecosystem of over 13,000 strains of viral bacterium, the majority of them contageous and the minority lethal on contraction, she provides her own body with the necessary mineral and nutrients needed to both support all of them and keep herself alive, which in itself requires very specific formulae. Ample amounts of different kinds of salts, most notobly. Because her body naturally produces hydroxide through the carapactic nodes throughout her body filtering out monoxide from the nitrogen in the air (it's how she actually breathes, and why everybody within a 50 foot radius develops some sort of intestinal cancer), a healthy dose of electronically charged acid will both stabilize her pH levels and provide her with addictional required necessities. Given that she has no real taste receptors nor gag reflex, she often just swallows the battery itself and allows the corrosive nature of the salts to rust away the metal to properly ingest herself, kinda like the clear film over a herbal supplement.