Manchas escuras na pele dos joelhos e pés

Hi. I have very dark patches on both knees and one foot. Nothing gets rid of it. They look like really bad bruises. They are embarrassing and I hate showing my legs in summer.

Been to the doctor?

Yeah she gave me some cream. I can't recall the name but I used it all and it didnt improve.

I would go back to the doctor or get a second opinion with another doctor.