Throat really red; Weird sore throat; Sinus drainage; Neck lymph nodes swollen; "Flip flop" skip beats; This spontaneous case was reported by a consumer and describes the occurrence of PHARYNGEAL ERYTHEMA (Throat really red), OROPHARYNGEAL PAIN (Weird sore throat), SINUSITIS (Sinus drainage), EXTRASYSTOLES ("Flip flop" skip beats) and LYMPHADENOPATHY (Neck lymph nodes swollen) in an 80-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 044B21A and 045A21A) for COVID-19 vaccination.     Concurrent medical conditions included Stevens Johnson syndrome (allegedly precipitated by mycoplasma infection and patient would have occasional flare ups) since 1991.   On 16-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 13-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 16-Apr-2021,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced EXTRASYSTOLES ("Flip flop" skip beats). On 23-Apr-2021, the patient experienced PHARYNGEAL ERYTHEMA (Throat really red), OROPHARYNGEAL PAIN (Weird sore throat), SINUSITIS (Sinus drainage) and LYMPHADENOPATHY (Neck lymph nodes swollen). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for Sore throat, at a dose of UNK dosage form; PREDNISONE for Sore throat, at a dose of UNK dosage form; ALUMINIUM HYDROXIDE, MAGNESIUM HYDROXIDE, SIMETICONE (MYLANTA 11) for Sore throat, at a dose of 1 UNK and DIAZEPAM (VALIUM) for Palpitations, at a dose of UNK dosage form. On 01-Jun-2021, LYMPHADENOPATHY (Neck lymph nodes swollen) had resolved. At the time of the report, PHARYNGEAL ERYTHEMA (Throat really red) and OROPHARYNGEAL PAIN (Weird sore throat) had not resolved and SINUSITIS (Sinus drainage) and EXTRASYSTOLES ("Flip flop" skip beats) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, SARS-CoV-2 test: negative (Negative) 1st week of May, the patient had a Covid test and tested negative.         On 23-Apr-2021, the patient had a weird sore throat ad their throat was noted to be really red and also had sinus drainage. The patient's neck lymph nodes were also noted to be swollen but reported to be resolved at the time of the call. The patient reported that they did not have fever and regularly checked their temperature.  Reportedly, on 06-May-2021, the patient had an echocardiogram as a workup for their palpitations but was still waiting for their appointment with a cardiologist to know the final result. On 14-May-2021, the patient consulted their HCP and was prescribed with a mouthwash concoction which has for its ingredients: Benadryl, Prednisone, Mylanta, and an unspecified antibiotic (Neomycin?)  On 30-JUN-2021, the patient reported that all their symptoms had resolved after a couple of weeks except for their throat remains irritated mostly on patient's left side. The patient said the irritation comes and goes, but never fully resolved. The patient did see a nurse practitioner and was prescribed a mouthwash to gargle with that helps. The patient did not know the name or dosing of the mouth wash but stated it was an antihistamine.  The patient was not sure if this was related to the vaccine or her medical history.  Concomitant medication included Beta blocker.  Treatment medication included an antihistamine mouthwash concoction and an unspecified antibiotic.   This case was linked to MOD-2021-193436 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 30-Jun-2021: Follow up received on 30-Jun-2021. Updated the  outcome of events from not recovered to recovered for sinus drainage and extra systole.