Gingival cellulitis can be treated with penicillin, erythromycin, metronidazole, cefixime and other medications under a doctor’s supervision. However, root canal treatment or local periodontal treatment should be carried out in time. 1. Penicillin: The drug belongs to the β-lactam antibiotics, penicillin class, and is mainly used for the treatment of mild and moderate infections caused by pathogens highly sensitive to penicillin, such as tonsillitis, scarlet fever, dengue (acute infectious disease, visible reddening of the skin like paint), Streptococcus pneumoniae and so on. 2. Erythromycin:The common dosage form of this drug is tablet, etc. It belongs to macrolide antibiotics and is mainly used for the treatment of acute tonsillitis, acute pharyngitis, sinusitis and legionellosis. 3. Metronidazole: the drug is used for the treatment of intestinal and extra-intestinal amebiasis, but also for the treatment of vaginal trichomoniasis, pouch worm disease and cutaneous leishmaniasis and so on. 4. Cefixime: the drug is used for bronchitis, pyelonephritis, cystitis, cholecystitis, otitis media and so on. It is recommended that patients under the guidance of a doctor, strictly comply with the medical advice to use drugs, not blindly use drugs or change the dose of drugs without authorization, so as not to cause adverse effects on the body, triggering the emergence of other diseases.