This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION SITE PAIN (Red patch was itcy and sore), VACCINATION SITE PRURITUS (Red patch was itchy), VACCINATION SITE ERYTHEMA (Redness/rash occured at the same time/redness/rash covered approx. 75% of my upper left arm), VACCINATION SITE SWELLING (Arm swelling size of baseball below the injection site) and VACCINATION SITE RASH (Rash occured at the same time/redness/rash covered approx. 75% of my upper left arm) in a 57-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 032F214) for COVID-19 vaccination.  Previously administered products included for Product used for unknown indication: Pfizer vaccine (1st and 2nd doses are of Pfizer vaccine) on 05-Apr-2021 and FLU vaccine (Right arm) on 11-Nov-2021.Past adverse reactions to the above products included No adverse event with FLU vaccine and Pfizer vaccine.On 11-Nov-2021, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 11-Nov-2021, the patient experienced VACCINATION SITE PAIN (Red patch was itcy and sore), VACCINATION SITE PRURITUS (Red patch was itchy), VACCINATION SITE ERYTHEMA (Redness/rash occured at the same time/redness/rash covered approx. 75% of my upper left arm) and VACCINATION SITE RASH (Rash occured at the same time/redness/rash covered approx. 75% of my upper left arm). 11-Nov-2021, the patient experienced VACCINATION SITE SWELLING (Arm swelling size of baseball below the injection site). The patient was treated with PARACETAMOL (TYLENOL [PARACETAMOL]) for Adverse event, at an unspecified dose and frequency. On 15-Nov-2021, VACCINATION SITE SWELLING (Arm swelling size of baseball below the injection site) had resolved. On 16-Nov-2021, VACCINATION SITE ERYTHEMA (Redness/rash occured at the same time/redness/rash covered approx. 75% of my upper left arm) and VACCINATION SITE RASH (Rash occured at the same time/redness/rash covered approx. 75% of my upper left arm) had resolved. At the time of the report, VACCINATION SITE PAIN (Red patch was itcy and sore) had not resolved and VACCINATION SITE PRURITUS (Red patch was itchy) outcome was unknown. On an unspecified date, the patient took pfizer as 1st dose vaccine.No concomitant medications was provided by the reporter.Treatment reported as cold compress injection site by the reporter.On 11-Nov-2021 - Left arm swelled at injection site within 2 hours after injection to the size of a baseball.  Redness/rash occurred at the same time as the swelling and covered 50% of my left upper arm.Red patch was itcy and sore.On 12-Nov-2021 - Swelling continued and redness/rash covered approx. 75% of my upper left arm.On 13-Nov-2021- No change from 12-Nov-2021On 14-Nov-2021  Swelling decreased but redness/rash extends to my elbowOn 15-Nov-2021 - Swelling was gone, redness/rash was about 90% gone.On 16-Nov-2021 -Arm was still sore but redness/rash is gone.This case was linked to MOD-2021-385892 (Patient Link).Most recent FOLLOW-UP information incorporated above includes:On 17-Nov-2021: Additional information includes Reporter information, Patient demographics, Historical vaccine,Treatment drug, Event outcome and Events added.