broke out in hives and is covered from head to toe, front and back/hives/covered from her neck to her knees, on her head, neck, and back with hives; very itchy; breaking out on her stomach; This is a spontaneous report from a contactable consumer or other non-healthcare professional (patient). A 55-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Batch/Lot number: FA6780, Expiration date: unknown), via an unspecified route of administration in arm left on 15Jul2021 at 14:00 (at the age of 55-year-old) as a dose 1, single for COVID-19 immunization. The family medical history included passed away (the caller's mom passed away from cancer). The patient's medical history (including any illness at time of vaccination) included fibromyalgia, stated that, she had fibromyalgia too and that seems to intensify any type of medical issues. Diagnosed 8-9 years ago and arthritis, diagnosed when she was 12 years old, it started in her knees and now she has it all over. The patient's concomitant medications included ibuprofen (its off brand), 200 mg, taken for fibromyalgia. History of all previous immunization with the Pfizer vaccine considered as suspect was reported as none. Additional vaccines administered on same date of the Pfizer suspect was reported as none. Prior vaccinations within 4 weeks were reported as none. Adverse events following prior vaccinations was reported as none. It was reported that, the reporter was called about the covid vaccine. Enquired that, reporter was a 55-year-old consumer who received the first dose of the Pfizer COVID-19 vaccine on 15Jul2021. Stated that, the reporter had a bad reaction to it. PCP was declined. On 24Jul2021, she broke out in hives and was covered from head to toe, front and back. She described these hives as very itchy but not life threatening. Stated that, this event happened after the reporter's first dose of the vaccine. Stated that, the day before yesterday, on an unspecified date in 2021, the patient was breaking out on her stomach and now she was covered from head to toe, front and back. Stated that, the patient was covered from her neck to her knees, on her head, neck and back with hives. Stated that, the patient went to the hospital yesterday and they gave her some benadryl and a shot of steroids. Stated that, the patient was never admitted as a patient to the hospital. Stated that, the patient was feeling better today. Stated that, the reporter wanted to know whether she should take the second dose of the Pfizer COVID-19 vaccine that she was scheduled to receive on 05Aug2021. The reporter added that, she had fibromyalgia too and that seemed to intensify any type of medical issues. The fibromyalgia could be why this happened, it tends to make everything worse. Stated that, she did not had a primary care provider as this time. Stated that, she has notified (name withheld), where she received the first dose and they gave her Pfizer's number for advice on receiving the second dose. Stated that, the patient took the covid vaccine because everyone kept telling her to, she didn't want to get the virus. Stated that, reviewed commonly reported side effects with the Pfizer COVID-19 vaccine and referred the reporter to be evaluated by an healthcare professional at an urgent care or walk in clinic to determine severity of her hives to help guide her decision on taking the second dose. As noted in the fact sheet for recipients, she should not get the Pfizer-BioNTech COVID-19 Vaccine if she had a severe allergic reaction after a previous dose of the vaccine or if she had a severe allergic reaction to any ingredient of the vaccine. The decision to receive the second dose for any other reason cannot be made by Pfizer. Stated that, the patient was referred to speak to her healthcare provider about the risks of the vaccine compared to the risks of potentially not being fully protected against COVID-19 infection. Stated that, her healthcare provider knows her health situation and has access to information that can better help inform this decision. Enquired, the caller was supposed to take the second dose on 05Aug2021, should she get it or not. Adverse event broke out in hives and is covered from head to toe, front and back/hives/covered from her neck to her knees, on her head, neck, and back with hives resulted in emergency room visit and physician office visit was reported as no. The reporter seriousness of the events was reported as unspecified. Therapeutic measures were taken as a result of broke out in hives and is covered from head to toe, front and back/hives/covered from her neck to her knees, on her head, neck, and back with hives which included benadryl and a shot of steroids. The relevant tests were reported as none. The outcome of the events for broke out in hives and is covered from head to toe, front and back/hives/covered from her neck to her knees, on her head, neck, and back with hives was recovering while for the other events was unknown.  Follow-up attempts are completed. No further information is expected.