I have a small white head on my actual lip and I popped it and puss came out. I've head a cold sore before but this doesn't seem like one.?

Correct. This was not a cold sore. They don't have puss in them. It may have been a blocked oil duct of some kind. Either way, as long as it doesn't show any signs of infection, it's not dangerous for you. Hope it gets better!