Dont think anyone can answer this..?

Well, about 9 months or so ago i had this crazy itch on my neck. Now this spot that i am referring to is right around the spot where a 'hickey' would be. I went into the bathroom and it was about the size of a quarter and just a red bump. I itched it for a while but it was getting puffy so i stopped. Now a day later, it is in the form a bruise[black and blue]. Its the the size of a quarter also. This weird thing on my neck doesnt hurt, has no feeling when touched but just looks like a 9month old hickey? Sometime it will form back into the red lump and start itching again but it always forms back flat and black and blue. Now i doubt anyone has answers, but how about suggestions?