Booster dose: Has a lump on left side under arm, on the side received the booster dose Pfizer Covid 19 Vaccine; Booster; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 65 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 19Nov2021 (Batch/Lot number: unknown) at the age of 65 years as dose 3 (booster), single for covid-19 immunisation. The patient had no relevant medical history. Concomitant medication(s) included: INFLUENZA VACCINE taken for immunisation. Past drug history included: Penicillin for Hives, notes: she has had hives/hives were from a medicine /medicine was Penicillin. Vaccination history included: Bnt162b2 (Dose 1, single, lot number: EP6955, Route of administration: left arm, Time the Vaccination Was Given: First dose: AM), administration date: 20Mar2021, when the patient was 65 years old, for Covid-19 Immunization; Bnt162b2 (Dose 2, single, lot umber: ER8731, Route of administration: left arm , Time the Vaccination Was Given: Second dose: AM, The caller states she received the vaccines in the left arm because the caller had a fall on 02Aug2021 and fell on right hand side and had to get an operation on right shoulder.), administration date: 10Apr2021, when the patient was 65 years old, for Covid-19 Immunization, reaction(s): "had a fall". The following information was reported: IMMUNISATION (non-serious) with onset 19Nov2021, outcome "unknown", described as "Booster"; MASS (non-serious) with onset 20Nov2021, outcome "not recovered", described as "Booster dose: Has a lump on left side under arm, on the side received the booster dose Pfizer Covid 19 Vaccine".  Additional Information: Provided Lot Number for the suspect product (Booster dose) was FJ8757 or FJB757. The concomitant Products Flu vaccine: The caller states she received her flu vaccine a week prior to receiving booster dose Pfizer Covid 19 Vaccine. The caller was not sure of the date received the flu vaccine. Caller does not have an NDC. The caller was a consumer reporting she received the booster dose, first and second dose Pfizer Covid 19 Vaccine. The caller received the booster dose Pfizer Covid 19 Vaccine on Friday, 19Nov2021. The caller had a lump on left side under arm, on the side the caller received the booster did Pfizer Covid 19 Vaccine. Reporter details: The caller did not wish to provide email. HCP: The caller did not wish to provide name, address, telephone number or email. The caller was seeing her doctor on Wednesday, 24Nov2021 and wanted to clarify about the lump. Booster dose: Had a lump on left side under arm, on the side received the booster dose Pfizer Covid 19 Vaccine: The caller reports the lump began on 20Nov2021, the day after received the booster dose Pfizer Covid 19 Vaccine and was persisiting. history: The caller states she received her flu vaccine a week prior to receiving booster dose Pfizer Covid 19 Vaccine. The caller was not sure of the date received the flu vaccine. Caller did not have an NDC/lot/expiration date to provide for flu vaccine received. Caller states the flu vaccine was administered to caller at a (Withheld) on (Withheld) in (Withheld) in the caller left arm. additional Information did any AE require a visit to: Emergency Room Physician Office: No, The caller figured what was the use in going to the emergency room, if the caller died, the caller died, the caller really did not care. The caller was going to the doctor on wednesday, 24Nov2021 and thought the doctor could look at the caller then. No additional vaccines administered on same date of the Pfizer Suspect. Patient's Medical History (including any illness at time of vaccination) reported none. Prior Vaccinations (within 4 weeks) If applicable, list any other vaccinations within four weeks prior to the first administration date of the suspect vaccines: Vaccine Name: no adverse events following prior vaccinations: Caller report she had hives. Caller then clarify the hives were from a medicine not a vaccine. Caller specified the medicine that the caller had hives after taking was an antibiotic. Caller specified the medicine was Penicillin. The caller did not had an NDC/lot/expiration date to provide for penicillin.   The lot number for bnt162b2 was not provided and will be requested during follow up.