My hearing is not clear as like when you are younger; My temperature, my temperature usually is 96 or 97 because I have Hashimoto''s but it was up to 100 and 99; For my body, that is temperature, a lot temperature; Rash on my arm, feels hot; It started burning, itching and it is about 3 or 4 inches on my arm, at the site; It is swollen and hot; Rash on my arm, feels hot; It started burning, itching and it is about 3 or 4 inches on my arm, at the site; It is swollen and hot; Rash on my arm, feels hot; It started burning, itching and it is about 3 or 4 inches on my arm, at the site; It is swollen and hot; Rash on my arm, feels hot; It started burning, itching and it is about 3 or 4 inches on my arm, at the site; It is swollen and hot; Rash on my arm, feels hot; It started burning, itching and it is about 3 or 4 inches on my arm, at the site; It is swollen and hot; This is a spontaneous report from a contactable consumer (patient). A 76-year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot Number: FF2587), dose 3 via an unspecified route of administration on 11Nov2021 11:00 (at age of 76-year-old) as dose 3 (booster), single for covid-19 immunization. Medical history included Hashimoto's disease. Historical vaccine included bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot Number: ER8734), dose 1, via an unspecified route of administration on 06Apr2021 as dose 1, single; and then second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot Number: EW0170), via an unspecified route of administration on 27Apr2021 14:00 (at age of 75-year-old) as dose 2, single for covid-19 immunisation. The patient experienced her hearing is not clear as like when you are younger (medically significant), rash on her arm, feels hot; it started burning, itching and it is about 3 or 4 inches on her arm, at the site; it is swollen and hot, her temperature, her temperature usually is 96 or 97 because she have Hashimoto's but it was up to 100 and 99; for her body, that is temperature, a lot temperature on Nov2021. The patient underwent lab tests and procedures which included amylase: unknown result on an unspecified date in 2021, body temperature: 100 on an unspecified date in 2021 her temperature usually is 96 or 97 because she have Hashimotos, but it was up to 100 and 99; For her body, that is temperature, a lot of temperature. It went to 100, that is kind of on the edge because her temperature is usually low and that is why, they go by the temperature, the temperatures go by the average person but because she had, her temperature is always low and it went up, that amount. So, okay, she had a mild temperature, that is the temperature for her, it is mild temperature. So, well she just wanted to know what to do, she would just like to report it for one thing. She would like to report it, and this was happened by coincidence, she was listening to the other lady who reported a reaction about the vaccine, but she never heard about the rash, she heard all the other things but not about the rash (further clarification unknown). So, because she don't know that is one of the side effects and when she took it on 11th, that was 11Nov and yesterday, it started burning, itching and it is about 3 or 4 inches on her arm, at the site. So, she would like to know, is it okay just to put an ice pack on it. No treatment received for the events. The outcome of event her hearing is not clear as like when you are younger, her temperature, her temperature usually is 96 or 97 because she have Hashimoto's but it was up to 100 and 99; for her body, that is temperature, a lot temperature was unknown; for rash on her arm, feels hot; it started burning, itching and it is about 3 or 4 inches on her arm, at the site; it is swollen and hot was not recovered.  Follow-Up (18Nov2021): Follow-up attempts are completed. No further information is expected.