Saw this on the internet and got really curious! This girl noticed a cotton-like substance growing on the walls in her bathroom. The strangest part is that if she wipes it with water or a wet cloth, it comes off easily, but itβs back again the next day!! Pretty creepy. Does anyone know what this is? Is it harmful? #HomeMaintenance #BathroomProblems #MoldOrNot #HomeCare #Home