I had two of my wisdom teeth extracted a week ago, and while neither of the extraction sites are causing me problems, the gum nearest to my last molars (the two that are nearest to the wisdom teeth that were extracted) is bumpy and sort of discolored—the top one has bumpy pale spots and the bottom one is reddish. I do not feel any unusual pain, but I still feel a bit bruised when I smile fully and I can't open my jaw all the way. There is no foul odor or taste. I was prescribed amoxicillin and I finished the bottle this morning. Is this an infection or are my gums just healing from the surgery?