Boils are typically caused by Staphylococcus aureus bacteria, although they may be caused by other bacteria or fungi present on the skin surface. In addition to affecting the hair follicle, infections that cause boils will also typically involve the surrounding skin.
After an exhaustive search of my library I find no mention anywhere of any reference to moth as an omen or symbol of any kind. I will continue to look. Found this The moth is a symbol of sensitivity and impulsiveness, in dreams it can mean impending danger, and has traditionally been associated with psychic powers and their development. And of course like butterflies, they represent transformation. Apparently they're an omen of death in some cultures too.
Birds as Omens. 1  Crows, ravens, and blackbirds bring news of good passage and protection. 2  Hawks represent clear-sightedness and vision. 3  Owls are birds of ill omen.  When a hummingbird hovers nearby it means you are capable of achieving the 1  impossible. A bird in the house means different things depending on the bird and its behavior.