This is a spontaneous report from a contactable consumer (patient) via medical information team. A 73-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot Number: EL9264; Expiration Date: 31May2021), via an unspecified route of administration, administered in arm right on 10Feb2021 at 10:30 (age at vaccination was 73-years-old) as DOSE 2, 0.3 ML SINGLE for covid-19 immunization at cancer center No other vaccine was administered on same date of bnt162b2 vaccine. No prior vaccinations within 4 weeks. Medical history included ovarian cancer (Diagnosed with cancer a year ago. Right now is on a target chemotherapy. Her oncologist monitors the medication and advised caller to take the COVID-19 Vaccine. The patients chemotherapy has only been around for three years. inappropriate sinus tachycardia, hives and benign heart condition. The patient previously took bnt162b2 (Batch/Lot Number: EL8982; Expiration Date: 31May2021), via an unspecified route on 21Jan2021 at 10:30 AM as DOSE 1, SINGLE for covid-19 immunization and experienced arm hurt. Family history included father died at 97 and mother died off colon cancer. Concomitant medications included niraparib (ZEJULA) taken for ovarian cancer, atenolol taken for an unspecified indication, cetirizine hydrochloride (ZYRTEC [CETIRIZINE HYDROCHLORIDE]) and famotidine (PEPCID [FAMOTIDINE]) taken for hives; all start and stop date were not reported. Very prone to hives. Takes Zyrtec and Pepcid because the two products together stop the hives. Stated there is something chemical with Zyrtec and Pepcid that helped. Additional context stated, 'the patient had the Pfizer COVID-19 Vaccine. First one was one month before 11Feb2021. Arm hurt, but nothing else. Was not tired. On 17Feb2021, reported as this morning is a week after the second COVID-19 Vaccine, the patient had a blotchy rash all around where the injection site it, but no where else. She wanted to know if that reaction had been reported before, and if it was normal to have a reaction to the vaccine 1 week after. Also reported that she was diagnosed with cancer a year ago. Right now is on a target chemotherapy. Her oncologist monitors the medication and advised the patient to take the COVID-19 Vaccine. The patient's chemotherapy has only been around for three years. It is a strange drug. Her arm hurt after both COVID-19 Vaccines. Arm hurt worse on first dose than the second dose. Received both doses of COVID-19 Vaccine in the right arm. Arm pain subsided the next day on an unspecified date in Feb2021. Second COVID-19 Vaccine, she wasn't as sore, but it lasted a bit longer. Stated rash is only at the injection site and is making her a tad nervous. The rash at her injection site does not have hives. Is blotchy and looks like a map of the world. Is strange looking. Stated she doesn't know anything off of the top of her head anymore. Rash has stayed in the same spot. Has chills and aches on an unspecified date, but doesn't know if that is psychological because she is nervous'. Investigation assessment was unknown. The patient underwent lab tests and procedures which included cystoscopy: unknown result and unpacified test: unknown result on an unspecified date. The outcome of all the events was unknown while arm hurt was recovered on an unknown date in Feb2021.  Follow-up attempts are completed. No further information is expected.