I have been facing this issue since the past few months. It happens 1-2 in a month. My lip gets swollen and i also get itches and rashes on my back. I think its somekind of allergy but i am not able to find what is causing this allergy. Can it be because of too muc heat in the body. I have noticed that it normally happens when i eat chinese food or take hard drinks may be. Is there any tablet that i can take for the swollen lip. I m taking livocetrizen.