In order to determine the cause behind the swelling of your lips, you need to consider several factors. Did you suffer some trauma to the lips, did you eat something or take any medication that might have set off this reaction, is this the first time that this has happened or is it a regular occurrence, are you experiencing any other symptoms that might be related to the swelling? There are a large number of possible causes for swelling of the lips - allergies, trauma, medication, excessive exposure to the sun, and a number of diseases and medical conditions. In order to be certain of what is causing the swelling, you will probably need to visit your doctor.
Although there are some home remedies for swelling of the lips, they might not work if the cause is not taken into consideration. Also, even if a particular remedy works, it might only address the symptom and not the underlying cause. However, you can try applying a hot compress by using a soft cloth dipped in warm salt water. Do this three or four times a day, for about three minutes at a time. You can also apply some glycerin on your lips.
answered by G M