The incision starts just above your right collarbone and ends beside your Adam's apple. Five days ago, without bleeding, this cut appeared on your neck in your sleep. It travels up the sterno muscle in a jagged pattern as if following the path of least resistance until it arcs towards your Adam's apple and ends abruptly. It is thin as if cut with a fingernail and is only deep enough to show red. It is not healing. Currently, the pus in your gums concerns you more.