Don’t flush them. A rash that won’t clear needs a pediatrician.
Eco Wave bamboo water wipes, unscented, 12 × 64: Wipe is 100% bamboo fibre, a plant fibre, in 99% water with aloe, apple extract and a mild preservative. No fragrance.
WaterWipes Sensitive+ Newborn & Baby unscented wipes, 12 × 60: Viscose (plant-fibre) wipe. Its listing says it contains a trace of benzalkonium chloride, a quat disinfectant. Don't flush it.
WaterWipes Sensitive+ Textured Clean, baby & toddler, 720 count: Viscose (plant-fibre) wipe, per the listing. Don't flush it.