I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut; I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut; I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut; I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut/It is interfering with my daily life; I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut; I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut; I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut; received my booster dose of the Pfizer BioNTech COVID-19 vaccine adult formulation (purple cap); 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 54 year-old female patient received bnt162b2 (BNT162B2), administered in arm right, administration date 14Dec2021 17:30 (Lot number: FD7218) at the age of 54 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Lots of allergies" (unspecified if ongoing); "GERD" (unspecified if ongoing). Concomitant medication(s) included: PANTOPRAZOLE taken for gastrooesophageal reflux disease (ongoing). Vaccination history included: Bnt162b2 (Dose:1, Lot: EW0164, Expiry: Unknown, Pfizer Covid 19 Vaccine), administration date: 16Apr2021, when the patient was 54 years old, for COVID-19 Immunization; Bnt162b2 (Dose:2, Lot: ER8736, Expiry: Unknown, Pfizer Covid 19 Vaccine), administration date: 07May2021, when the patient was 54 years old, for COVID-19 Immunization; Flu (Flu Vaccine, received before the holidays); Shingles vaccine (received before the holidays). The following information was reported: VACCINATION SITE REACTION (non-serious), VACCINATION SITE WARMTH (non-serious), VACCINATION SITE PRURITUS (non-serious) all with onset 15Dec2021, outcome "not recovered" and all described as "I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut"; IMMUNISATION (non-serious) with onset 14Dec2021 17:30, outcome "unknown", described as "received my booster dose of the Pfizer BioNTech COVID-19 vaccine adult formulation (purple cap)"; VACCINATION SITE SWELLING (non-serious), VACCINATION SITE ERYTHEMA (non-serious), VACCINATION SITE MASS (non-serious) all with onset 16Dec2021, outcome "not recovered" and all described as "I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (non-serious) with onset 15Dec2021, outcome "unknown", described as "I've experienced a localized reaction at the injection site, it's hot and itchy, is red with a lump sized like a walnut/It is interfering with my daily life". Therapeutic measures were taken as a result of vaccination site reaction, vaccination site warmth, vaccination site pruritus, vaccination site swelling, vaccination site erythema, vaccination site mass, loss of personal independence in daily activities.  Additional information : The consumer stated that she received her booster dose of the Pfizer BioNTech COVID-19 vaccine adult formulation (purple cap) on Tuesday 14Dec2021 and she had experienced a localized reaction at the injection site, it's hot and itchy, was red with a lump sized like a walnut. It was interfering with her daily life. States that she had a localized reaction to it, similar to a reaction to an allergy shot. States that she has had a lot of allergy shots in her life. She needs to know how long this might last, and if there is anything she needs to do for it? States that she has taken Benadryl twice, but it's getting bigger and it's not diminishing the itching sensation. She got the injection on Tuesday, 14Dec2021 at 5:30pm. She thought, by today, that it would have gone away. She does not have the complete contact information for her physician. States that she noticed the reaction at the injection site on Wednesday afternoon while she was at work, it felt hot and itchy. She took a Benadryl Wednesday night, and Thursday morning it was worse; it was red, itchy, and there was a lump like a walnut. She took another Benadryl on Thursday night; states that she could only take Benadryl at night because they knock her out. Today the circumference of the reaction was a little bit bigger, and it was still red, itchy and hot. She Clarified that she actually took withheld Pharmacy generic, Wal-dryl, not Benadryl. At first she stated that she could not read the fine print, but she was able to find the Expiration date: Jun2020. Caller states that she did  not realize she was taking an outdated product and maybe that was the reason it did not work. States that she could not find anything on the bottle that says Lot or Batch. States that her adult son got his dose at the same time, at the same location, and has had no reaction. The patient received Flu vaccine and Shingles vaccine within four weeks prior to the first administration date of the suspect vaccine The patient does not know the exact dates received or have the Lot/NDC/Expiry to provide. The patient was lots of allergies. Family Medical History Relevant to AE reported as none.