spongiotic dermatitis; sore throat; Rash; she developed a very itchy rash which she still has. At first there were just a few spots then it was on her arms, on her legs and torso.; 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 75-year-old female patient received BNT162b2 (BNT162B2), on 24Sep2021 as dose 3 (booster), single (Lot number: EWO185) at the age of 75 years, in arm for covid-19 immunisation. The patient had no relevant medical history. The patient took concomitant medications. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE), for COVID-19 immunization; Bnt162b2 (DOSE 2, SINGLE), for COVID-19 immunization. The following information was reported: RASH (non-serious) with onset Sep2021, outcome "not recovered"; RASH PRURITIC (non-serious) with onset Sep2021, outcome "recovering", described as "she developed a very itchy rash which she still has. At first there were just a few spots then it was on her arms, on her legs and torso."; OROPHARYNGEAL PAIN (non-serious) with onset 25Dec2021, outcome "unknown", described as "sore throat"; ECZEMA (non-serious) with onset 09Feb2022, outcome "recovering", described as "spongiotic dermatitis". The events "rash", "she developed a very itchy rash which she still has. at first there were just a few spots then it was on her arms, on her legs and torso." and "spongiotic dermatitis" required physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of rash, rash pruritic, eczema.  Additional information: There were no other conditions. Other concomitant medication were Vitamins. The caller is calling about the Pfizer booster shot, the third dose of the Pfizer covid vaccine. After the caller got it at the end of Sep2021 she developed a very itchy rash which she still has. At first there were just a few spots then it was on her arms, on her legs and torso. The caller has taken 3 trips to the dermatologist and been prescribed medications. They did a biopsy of it and it indicated spongiotic dermatitis. The caller was put on prednisone for 16 days and that helped considerably. The caller has been to an allergist for skin test but not for the vaccine. Cold weather makes the rash worse. The caller is 76 and the doctors advised her to hold off on the fourth dose until they find a cure for the side effect. The caller read online that it is possible to do skin test for allergic vaccine but an allergist can do it but don't have the vaccine. The caller was wondering if Pfizer knows about this. The caller would like to get rid of the rash and knows that she will need other boosters in the future and knows she won't die from the rash but its making life uncomfortable. Caller questioned does Pfizer know about some skin tests for the vaccine to see if this is what is causing it, Because the caller has to get this handled before getting other doses. Reporter: Declines email. Patient: The caller provided her middle initial. The rash has gone up and down with warmer weather its better, if the caller gets cold it gets worse. Product: The caller received the third dose on 24Sep2021. The caller was currently on anti histamines which was helping a little. The caller took a home test for Covid on December 25th because she had a sore throat but it was negative  No follow-up attempts are possible. No further information is expected.