###Human: I have painful swollen gums with ulcers after excessive brushing. Kindly help. ###Assistant: Hello. Actually, you have gum infection (gingivitis). It is common and curable. First thing if there is any hard deposit then you should see your dentist for a professional dental cleaning. Maintain proper oral hygiene like two times brushing, flossing at least once a day, do not use any type of tobacco or smoking, change your toothbrush every two months and use proper brushing technique. These instructions help you to maintain healthy gum and teeth.