Haha, that bring back good old times. When I used to take e and I was still living at home I had to convince my parents that I was not beaten up at this party I went to the night before.
There is only one way to minimize this just by chewing gum, then you won't chew that much on your lips. It can be terrible this friend of mine once did a lot of e en her lips were like big "zulu" lips for at least a couple of days.
We al thought it was very funny but she didn't of course.
Also what you can get from a night of e is these blisters in your mouth, don;t know what they are called in english but in Dutch its : "aften". They can hurt like hell and can even make it difficult to eat, but perhaps this is just me and I used to take it a bit too far sometimes.