Booster; swollen hard spot; burning sensation where she got the vaccine; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 66 year-old female patient received bnt162b2 (BNT162B2), intramuscular, administered in deltoid left, administration date 11Dec2021 16:00 (Batch/Lot number: unknown) at the age of 66 years as dose 3 (booster), single for covid-19 immunisation. The patient's relevant medical history was not reported. There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose: 1, Lot EL9265, Caller relays she got the 1st 2 doses at Regional hospital and the booster at store. Caller states to double check the information), administration date: 06Feb2021, when the patient was 65 years old, for Covid-19 Immunization; Bnt162b2 (Dose: 2, Lot EN6201, Caller does not have NDC or expiry to provide., Caller relays she got the 1st 2 doses at  Regional hospital and the booster at store. Caller states to double check the information), administration date: 02Mar2021, when the patient was 65 years old, for Covid-19 Immunization; Flu shot; Shingles shots (Caller relays that the shingles shot gave her muscle pain but no redness or swelling underneath.), for Immunization, reaction(s): "muscle pain".The following information was reported: IMMUNISATION (non-serious) with onset 11Dec2021 16:00, outcome "unknown", described as "Booster"; INJECTION SITE INFLAMMATION (non-serious) with onset Dec2021, outcome "unknown", described as "swollen hard spot"; BURNING SENSATION (non-serious) with onset Dec2021, outcome "unknown", described as "burning sensation where she got the vaccine". Additional information: Call transferred by (withheld) from agent NTID # Reportum# #. According to agent, caller got the Pfizer BioNTech Coovid-19 booster dose on Saturday 11Dec2021 and has been experiencing side effects. Agent states the caller has a swollen hard spot that is also red with a burning sensation where she got the vaccine. Caller would like to know how long should she be expecting the side effects to last and would like to know when should she be concerned. Caller relays that the shingles shot gave her muscle pain but no redness or swelling underneath. Caller states she does not have the name of the vaccine, NDC, lot or expiry to provide for either dose. States she is over the age of 55 and it's the regular one that they had 2 shingles shots and the 1st one it was just pain in the area and felt that and knows that sometimes pain is good, it's the body absorbing it and the 2nd shot she had no pain and didn't notice any redness or swelling. Prior Vaccinations (within 4 weeks): Caller states that if anything it would have been the shingles but she thought she waited long enough, 2 weeks or more, States that (withheld) is where she got the shingles shots and they will have record of them. Caller states she realizes she has it now and that each person is different but how long should she expect this to be for and when should she be concerned, like if it doesn't go away by Wednesday or Thursday should it be noticeably gone? Caller states she is worried because that means that something else is going on and she is not the 1st person that has called and would like to know the average time of when she should be concerned.   The lot number for bnt162b2 was not provided and will be requested during follow up.