Gum abscess that is, periodontal abscess, after drainage treatment, you can take anti-inflammatory drugs to prevent the spread of infection, commonly used anti-inflammatory drugs, including nitroimidazole drugs, tetracyclines, etc., as follows. 1. Nitroimidazole drugs: such as metronidazole, tinidazole, ornidazole, etc., for the treatment of anaerobic bacteria caused by various infections, including periodontitis, periodontal abscess. 2. Tetracycline drugs: such as tetracycline, doxycycline, minocycline, etc., belongs to the broad-spectrum antibiotics, antibacterial effect, and oral absorption is good, can be used to treat periodontal infections. All of the above drugs need to be used under the guidance of a doctor, it is recommended to go to the hospital in a timely manner, and receive regular treatment as soon as possible.