Full-thickness skin necrosis of the fingertip after application of superglue.

We present the case of a 39-year-old woman who applied superglue to her fingertip as a treatment for dry skin. She developed full-thickness necrosis of her thumb pad complicated by a secondary superinfection. This necrosis occurred from the degradation of the cyanoacrylate in the superglue compound to formaldehyde, causing local histotoxicity. This injury necessitated a local flap for coverage, which healed uneventfully and without lasting sequelae.