Hi, I have had an ache in my gum for several days. It's in the front of my mouth on the bottom jaw. The gum is swollen and red but just around one tooth, and it is actually below the tooth, not directly around the tooth. The tooth does not hurt it's just the gum. It's painful when I eat or smile, and slightly to the touch. There is also a small white spot in the same area that is troubling to me. Any ideas what's going on here?