rash after booster caller stated: by March 2022  it looked like a little red peanut shape just on one cheek; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 64-year-old female patient received bnt162b2 (BNT162B2), in Jan2022 as dose 3 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Comirnaty (DOSE 1), for COVID-19 immunisation; Comirnaty (DOSE 2), for COVID-19 immunisation. The following information was reported: RASH (non-serious) with onset Jan2022, outcome "unknown", described as "rash after booster caller stated: by March 2022  it looked like a little red peanut shape just on one cheek".  Clinical course: Caller looking for information regarding rashes after booster especially on the cheek. Caller with question regarding side effect for Pfizer booster covid 19 vaccine that she had received in January of 2022, (caller stated that it was her first and only booster)  caller had two initial shots prior that,  caller stated that she did not have any reactions that she was aware of except  reported rash after booster caller stated: by March 2022  it looked like a little red peanut shape just on one cheek, and I kind of ignored it was not kind of a big deal, I think I had picture of my face I think in end of  November ( per caller she did not see any mark  on her face when she looked at the picture)  from  there kind of extended down on the check, it is still there kind of gotten worse, wanted to know if that was a reported, could that be some type of autoimmune condition? Planning to see dermatologist has been in contact with primary doctor. She actually went to the sleep doctor who told her that he wanted her to see dermatologist. she has gotten for another reason to her primary doctor and shown and she was asked if it itch, she said it does not itch at all and that was it. Caller stated I went online and googled. some of these vaccines and I thought it said it was some rare responses. Patient Had had no problems before, is 64, never had wrinkles or anything. Thought it would go away. Not sure if Pfizer has ever heard of this. Not sure if from booster. She is sensitive to anything. She had photograph and enlarged it and didn't see it in November. In February, there was a peanut shaped red mark on one cheek. It never went away and has extended down on the cheek. Has Pfizer heard of that? She wears CPAP at night. It is still there, but now bigger rash. Doesn't usually wear foundation and still wears mask when out in public at lot of the time. That is why she only just recently got Covid. That is the only thing caller can think of. She is wondering if she had reaction to booster. Is that a reaction that could happen? She has a feeling she is going to make appointment with dermatologist who won't know either. She thinks it is unusual that she has pic where it started and where it stayed that shape for a long time. That was Mar2022 and that was a year and 7months ago. It has kind of streaked down. She has always had clear complexion and never had any issue. It was after Pfizer Covid booster in Jan2022, her only booster, that she noticed it. Because of this she is afraid to get another booster. She never had any immediate swelling or problem with that or trouble breathing. Nothing like that. She just happened to notice that on one particular cheek that appeared out of nowhere. She was thinking it would go away. She is not sure if it created an autoimmune type thing. She can't say specifically. It's that she just recalled she got it in Jan2022. She blowed up picture in Mar2022 and she noticed it. It was just when she blew it up she saw it at that time. Then when she went to the sleep doctor he thought she should see the dermatologist. The dermatologist is brand new and probably only used to taking moles off. Caller declined report. Caller mentioned this to her primary care who is an osteopath. Her doctor only asked if it itched.  The information on the batch/lot number for bnt162b2 has been requested and will be submitted if and when received.