Jeepers woman!! That duct is blocked well and good! For future reference I always found (and was told by my LC) that holding something that vibrates against your boob will generally unblock a duct. So an electrical tooth brush or a "toy". I guess the vibrations help it pass through. It worked every time for me.
Also they say blocked ducts can be caused by extra creamy/fatty milk... So go your boobies! XD