I woke up with a swollen lower lip...somewhat like a clown's. There was no causative injury. I know I am quite dehydrated, particularly in the last 48 hours. However, my lips are chapped but not extraordinarily so & are not cracked or bleeding. Could this be a cause? I also need some dental work, but there is no abcess or infection. Regrettably, there is gingivitus. Please give me your thoughts soon. I appreciate this you offer your expertise to give possibilities as to what a person is suffering.