I have looked every where on the web and cannot find out how long a clogged duct will last. I woke up engorged last Friday (because my 10 1/2 week old son slept through the night) and noticed a lump. I've had these before when engorged and thought it would go away after he fed but it hasn't. I have been putting heat on it and massaging but nothing seems to change. How do I get rid of this thing and how long will it take? Also... will this cause pain when he's feeding or is that simply from a poor latch? Oh... and how do I know this is a clogged duct vs. another kind of lump in my breast?