Hard to tell, but it could be an insect bite.
Instead of showing us show this to your physician.
Can this be a bat bite?
http://imgur.com/a/TCvFB/embed (My cam's AF won't cooperate, but there are also much smaller scabs around that that my cam didn't pick up.)Also, I have not seen, heard nor felt a real life bat, and I sleep with my windows closed.
