What's your diagnosis? Besides the erythema this patient has lymphadenopathy in his neck. It all manifested after visiting the dentist. I'll post the correct answer in a day or three!
Correct answer: Yes, it’s Ludwig’s angina. An infection of the submental, sublingual and submandibular spaces, most commonly after teeth extractions. Besides erythema, there’s lymphadenopathy in the patient’s neck; in some cases, this causes airway obstruction.