For red and swollen gums, you can take oral cephalosporins plus metronidazole. If you are allergic to cephalosporins, you can also use penicillin-like amoxicillin, or add metronidazole and tinidazole. If you are allergic to both, you can take the use of erythromycin and roxithromycin, plus metronidazole and tinidazole in combination, in order to effectively eliminate the redness and swelling of the gums. And in the mouth, use mouthwash auxiliary, such as compounded boric acid solution, 0.12%-0.2% chlorhexidine rinse, rehabilitation new solution, or stomatitis spray, such as open throat sword spray. In addition, for red and swollen gums, the condition of tartar in the mouth and the state of broken and splintered teeth should be checked, and certain treatment should be given in a targeted manner. For periodontal, scaling and subgingival scraping treatment is required. For split teeth, extraction is required after the gum redness and swelling are eliminated. If the gums are red and swollen due to an apical abscess, root canal treatment is required.