chills; injection site / area started redening up a little bit; area is itching like crazy; 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 45-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 01Oct2022 at 09:00 as dose 4 (booster), single (Batch/Lot number: unknown) at the age of 45 years, in left arm for covid-19 immunisation. The patient's relevant medical history included: "obesity" (unspecified if ongoing); "regular seasonal allergies" (unspecified if ongoing). Concomitant medication(s) included: FLU VACCINE VII. Vaccination history included: Bnt162b2 (Dose: 3rd), administration date: Sep2021, when the patient was 44 years old, for Covid-19 immunization; Bnt162b2 (Dose:2nd), administration date: Feb2021, when the patient was 43 years old, for Covid-19 immunization; Bnt162b2 (Dose: 1st), administration date: Jan2021, when the patient was 43 years old, for Covid-19 immunization. The following information was reported: INJECTION SITE PRURITUS (non-serious) with onset 02Oct2022, outcome "not recovered", described as "area is itching like crazy"; CHILLS (non-serious) with onset 02Oct2022, outcome "not recovered"; INJECTION SITE ERYTHEMA (non-serious) with onset 02Oct2022, outcome "not recovered", described as "injection site / area started redening up a little bit". Therapeutic measures were taken as a result of chills, injection site erythema, injection site pruritus.   Additional information: it was reported that this is a Pfizer COVID Booster dose, This was her 2nd booster. The patient is a 45 year old female. She got it Saturday 01Oct2022 and the next day she developed chills and the injection site / area started redening up a little bit. Now today, Tuesday, the injection site is the size of a bottom of 20 oz soda bottle per patient. The area is itching like crazy and driving her insane with how bad it is itching. She wants to know how long this could last. It was further stated that: "This is getting as annoying as a wasp sting, or something like that." "Hopefully I am on the down hill side." It was added that: She got the shot on Saturday 01Oct2022. Nothing happened saturday. On Sunday, she got chills, and the injection area started reddening up a little bit. Now, it is tuesday, and the injection site is about the size of the bottom of a 20 oz soda bottle. It is itching like crazy. The patient asked: How long will this last before it goes away? Right now it is annoying her. She doesn't have her vaccine card with her right now she is at work. This was her Pfizer Comirnaty booster. This was her second booster. Her first booster was Sep 2021. Then her primary series was in Jan 2021 and Feb 2021. The treatment includes: aspirin. She got her three prior vaccines at a facility too. They were all Pfizer. She is obese, and she has been fat all of her life. The events did not require visit to emergency room and physician office. Prior Vaccinations (within 4 weeks): flu vaccine (got it at facility too about 2 weeks prior). No relevant tests noted.   The information on the batch/lot number for BNT162b2, BNT162b2 omi ba.4-5 has been requested and will be submitted if and when received.