<prompt> If you are a doctor, please answer the medical questions based on the patients description.My gums on one side of my mouth are swollen and feel rough and they are also slightly pale but do not hurt and neither do my teeth .I don t have a fever or swollen glands. I brush twice a day and floss once a day and also use mouth wash before bed. The swelling came on suddenly after flossing last night what s going on?  <response>: Hello and welcome to Chat Doctor forum, i would be glad to answer your query, i would like to inform you that the sudden swelling over the gums appeared following trauma from flossing. Sometimes, improper technique for flossing cause cuts over the gums, therefore I recommend you to avoid using the floss in the affected area for at least 3-5 days, allow healing to happen. Kindly use proper technique for flossing to avoid floss cuts. You can continue using a mouth wash, massage you gums with dologel-ct twiceday, apply it half a before the meals. Follow the given instructions, swelling will disappear in a few days.I hope I answered your query, i wish you good health. 