I have gone through your question and I can understand your concern about your toothache and facial swelling. You need IV (intravenous) route antibiotics like Ceftriaxone one gram after allergic test and for that, you must visit either a dentist or an emergency room. After your infection is over either get your teeth root canaled or extracted as per the condition of the tooth and your choice.
The Probable causes:
Grossly decayed tooth.
Periapical periodontal abscess with related space infection.
IV route antibiotics after test dose for allergic reaction.
Root canal treatment or extraction.
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.. 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 anot... Read full
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