<s>[INST] hi, I have a wall devider in my bathroom,well I didn t have any nite light on and I thought I was clear of the wall,but I hit my left cheek a week ago i ended up with a black eye and black and blue cheek.on my check bone there is a knot,can t even touch it.should I go to doctors or wait till it goes away . thanks [/INST] Hi there.It could be a resolving blood clot formed due to the trauma. You can apply pain killer gel in that region if it hurts. The knot will resolve. Nothing to worry. </s>