Gum swelling and pain, in fact, is the pain at the root of the tooth, and the surrounding gums are swollen, so it is called gum swelling and pain, also known as gum pain. For gum pain, we need to see what causes it. If it's common gum inflammation, taking some common anti-inflammatory drugs will do, such as metronidazole tablets or tinidazole tablets. But if the gum pain is caused by tooth decay, you need to go to the hospital for a check-up.