I noticed a few days ago that I have a circular bruise with a small white bump in the middle on my calf. It is not sore or anything but it is not going away or changing colour as though it should if it was healing. I don't remember hitting my leg. What could be the cause of this? I also have pink eye in both eyes that won't go away. I've been using Polysporin antibiotic drops for pink eye and it's not helping.