Bruise on shin 13 years old, is there anything to get rid of it? Why still there? (photos)

I was in an MVA about 13 years ago. I had an injury to my shin. All this time later I still have bruises on my shins, one has a soft lump associated with it. Also if I am touched in a specific spot it will send me through the roof. I am hoping to figure out what this is? Why it's there? And how to get rid of it?

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