A sore on my left knee that won't heal and go away.

I have a quarter sized "sore" on my left knee. This "sore" started out being a rug burn that covered an area about 3 inches in diameter. It all healed normally until it got down to the present size. It has been 3 months since it has stalled it's healing and has remained this size. To make this even more difficult it is covered by a "scab" that isn't like any I have seen before. -It's chalky, white and powdery when touched. -It does not hurt or itch. -I scrub it when I shower and had kept neosporin with a bandaid on it for 2 weeks, yet it hasn't changed, for the better or worse in 3 months. -To my knowledge I have no medical issues that would prevent the natural healing of my body. -I feel healthy other than this, I have no known medical issues. What can it possibly be and what can I do to get rid of it now that the warmer weather is here I don't want to have to keep and bandaid on it 24/7.

Hi, It has been 3 months as you mention since you have had this - you should not neglect it any longer and schedule an appointment with your doctor. This looks to be infective - you would need to consult your doctor urgently. The pus would probably be sent for a laboratory analysis and you would need prescription medications. You would be given oral and local application antibiotics. Till then you can take over the counter pain relief medications like ibuprofen if there is pain. Try elevating the foot and also some warm compresses or hot fomentation. But do not delay in scheduling an appointment. Regards.

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