###Human: Why is there severe toothache with swollen face even after taking antibiotic? ###Assistant: Hi. I have gone through your question and I can understand your concern. I think you are having an acute periapical infection with involvement of buccal and mandibular space infection. If the swelling is increasing and there is burning pain you may need another antibiotic with Clindamycin. For that upload a picture so that I can provide you with the best possible treatment plan. Make sure you do not have any airway obstruction, that can be dangerous. Periapical infection due to the cavity. IOPAR X-ray. Acute apical periodontitis. Buccal space infection.