It's on the back of his neck. I freaked out, because I was searching online(trying to figure out what it could be), so I did take him to the vet. The vet took a look at it and said that it looks like a Histiocytoma which is basically a benign tumor. He then shaved that part of his fur so that he could put cream on it. I found that unessissary. I could easyly put cream on him without having to shave him. I guess the vet felt like shaving something
oh well it's done and over with now. His fur will grow back, and all that really matters now is that he's ok! well hopefully. I just need to keep an eye on it to make sure that it doesn't get bigger, and take him back to the vet in two weeks...