For gum recession caused by periodontitis, you can consider local application of minocycline hydrochloride ointment and oral nitroimidazole antimicrobial drugs to carry out symptomatic treatment, but the premise of the treatment is to carry out a better periodontal foundation treatment before applying drugs. Simply put, the main cause of periodontitis is poor periodontal hygiene, the presence of a large number of plaque and calculus, which provide a breeding ground for bacteria, thus leading to periodontitis and the formation of gum recession. In this case, our first treatment is to remove these plaque and calculus, by taking drugs, it is impossible to remove them cleanly, you must go to a professional stomatology through the physical gingival cleaning and subgingival scraping operation, the tartar and plaque thoroughly clean, and then consider the local application of topical medications, and at the same time the application of nitroimidazole antibiotics, antimicrobial treatment, to achieve better clinical control of periodontitis, the formation of gum recession. achieve better clinical control of periodontitis, so that the gum recession does not continue to develop.