You need to take care of your oral hygiene. Swollen gums means that calculus and plaque has started to build underneath your gums. It is advised to floss each tooth properly before you start brushing and use mouthwash twice daily. Also get the professional cleaning done by the periodontist. For more info on flossing and its technique visit the link...http://www.identalhub.com/articlecategory-dental-flossing-36.aspx