I too am expereincing swollen lips. Not sure if they are the same as yours. Mine turn almost like a pimple, open up, and then reapear (almost in an hour sometimes) in another location. I had recently been on medication for malaria prevention and also a sulfur drug for a bladder infection. A hypothesis is that the good bactria was destroyed in my body, incl the intestinal track, and has resulted in this symptom which is very painful. As we know, it doesn't do much good to treat the symptom and ignor the cause. So I have been eating items that increase the good bactia flora in my body. Such as goat yogurt, honey, and soon I will take some Garden of Eden pills to help in the situation. I hope that they resolve soon, becuase this is just strange pain.