Help with an issue that just started tonight

I want to know what I need to do after vividly dreaming about a dark entity named "Influx" that invades dreams and turns their narrative into whatever it feels like. Typically, using your phobias against you I assume as I am typing this after encountering it the first time. It caused intense feelings of fear and nausea. When I woke up, all I could do was vomit and turn a light on. I am wondering if anybody else has encountered this, and if so, is there a way to clear this entity from my home, or at least, from my space?