swelling in wrist; little bump that was itchy; gets itchy and it gets worse and swells up again; weeps a liquid; It swelled up like a blister almost; pain in her arm; She still has a scar on her right wrist from last time; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP), Program ID. The reporter is the patient.  A 69-year-old female patient received BNT162b2 (BNT162B2), on 22Apr2022 as dose 3 (booster), single (Lot number: FU9899) at the age of 69 years, in left arm for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: BNT162b2 (DOSE 1, SINGLE; Lot number: 30135BA), administration date: 13Oct2021, when the patient was 68-year-old, for COVID-19 immunization, reaction(s): "pain in her arm"; BNT162b2 (DOSE 2, SINGLE; Lot number: FH8020), administration date: 03Nov2021, when the patient was 68-year-old, for COVID-19 immunization, reaction(s): "pain in her arm". The following information was reported: BLISTER (non-serious) with onset Apr2022, outcome "unknown", described as "It swelled up like a blister almost"; SKIN SWELLING (non-serious) with onset Apr2022, outcome "recovered" (2022), described as "gets itchy and it gets worse and swells up again"; PRURITUS (non-serious) with onset Apr2022, outcome "recovered" (2022), described as "little bump that was itchy"; PAIN IN EXTREMITY (non-serious) with onset Apr2022, outcome "unknown", described as "pain in her arm"; JOINT SWELLING (non-serious) with onset Apr2022, outcome "not recovered", described as "swelling in wrist"; SKIN WEEPING (non-serious) with onset Apr2022, outcome "recovered" (2022), described as "weeps a liquid"; SCAR (non-serious) with onset 2022, outcome "not recovered", described as "She still has a scar on her right wrist from last time". Therapeutic measures were taken as a result of joint swelling, pruritus, skin swelling, skin weeping, blister, pain in extremity, scar.  Additional information: The patient got a swelling on her wrist after both of them. It started as a little bump that was itchy. It got worse and swells up again. It gets itchy and it gets worse and swells up again. Then, it weeps a liquid. It takes a while to go away. When this occurred in Apr2022, the patient didn't think it was related to the COVID vaccine because it happened 1.5 days later. The patient thought it was like a spider bite. It got worse and itchy. It lasted about 2 weeks that time. It was her right wrist last time, and she thinks she got the COVID vaccine in her left arm. It swelled up like a blister almost. She bumped it and the blister broke so since it was exposed, she kept a band aid on it. Since, it happened again this time she thought wait a minute this happened last time. It has happened in the opposite arm she received the vaccine in both times. She got her original vaccines back in 2021, and this didn't happen. It only happened with the boosters. She alternated arms for the boosters. She knows she had pain in her arm after the boosters. Even with the original series, she had pain in her arm. Treatment none this time, but last time bandaged and over the counter antibiotic creams.