Hi! Welcome to Healthcaremagic. I read your query. Swelling in gum behind front teeth can be either due to gum disease, trauma or caries. Check if there is some cavity in those teeth or adjacent teeth. In that case you need to visit a dentist, get an x ray done and it will require RCT of affected tooth/teeth. If its gum disease, it can be due to trauma e.g. tooth brush trauma etc. or some plaque calculus. In that case you need scaling and curettage. Get a prescription of antibiotics and painkiller for yourself. Do warm saline rinses. Take healthy diet and multivitamins. But for permanent treatment you need to visit a dentist. Hope the answer helps you. Thank you!