Swollen gums after root canal treatment need to be treated according to the cause, can be general treatment or drug treatment. 1. General situation, if the swelling of gums after root canal treatment is not serious, it may be the root canal treatment process instruments on the gums caused by irritation, resulting in slight redness and swelling, generally do not need too much treatment, usually do a good job of daily body care work can be. 2. medication, if the symptoms of gum swelling after root canal treatment is more serious, may be caused by pathogen infection, need to use medication under the guidance of a doctor, such as cefixime, amoxicillin, etc., can remove inflammation, relieve the symptoms of gum swelling. After root canal treatment, you need to pay attention to oral hygiene, keep your mouth clean, if you find discomfort, you need to consult a doctor in time.