Hello,my 92 year old mother has red inflamed looking lower calves with Destortion of her skin texture,and a sore that opened up and she claims..Clear fluid(like water), poured out of it. She put save on it and it later scabbed up. Left leg,worse looking then her right ,left leg has the scan. Also,her left foot,tonenails are a dark brown color..Not white. Refuses to go to a doctor..For anything!.. Do you have any idea,what this is? And is the brown toenails, related to this infection?