A 27-year-old female asked:
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what causes mild/painful swelling @ dental injection? tooth is ok, injection pain was immediate and went down neck on tuesday. pain now local w yellow spots/swelling. no throbbing, no major bruising, just raised and very tender.

4 doctor answers
Dr. Ira Friedlander
41 years experience Cardiac Electrophysiology
This could be an: infection from your description. Call your dentist and ask for an immediate evaluation and examination.
Answered on Nov 28, 2017
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Dr. Ira Friedlander
41 years experience Cardiac Electrophysiology
Provided original answer
If symptoms worsen and you cannot be seen over the weekend it would be reasonable to go to a STAT care or ER for evaluation.
Mar 18, 2017
Dr. John DeWolf
39 years experience Dentistry
Blood vessel?: Sometimes a dental injection nicks an underlying blood vessel which causes local bleeding and swelling often with bruising. This almost always resolves on it's own but if symptoms persist more than 10 days, go back in for an evaluation.
Answered on Mar 18, 2017
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Dr. Theodore Davantzis
39 years experience Dentistry
Trauma: Trauma at the injection site may be the culprit. Inflammation would cause your symptoms, which should abate in a day or two.
Answered on Mar 18, 2017
Dr. Katharine Cox
44 years experience Pediatric Emergency Medicine
Dental injection: This sounds like infection and less likely a reaction. Be checked and treated with antibiotics to swallow and to swish in your mouth. All the best for a speedy recovery.
Answered on Jun 11, 2017

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Any bacterial, viral: Or fungal infection can cause this. Have a culture done for confirmation. Take care !
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