spontaneous chronic urticaria, hives like ongoing hives/it's very frustrating for 6plus weeks i just keep breaking out for hives/breaking out with full hives; This is a spontaneous report received from a contactable reporter(s) (Other HCP) from medical information team. The reporter is the patient.  A female patient received BNT162b2 (BNT162B2), in Apr2021 as dose 2, single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE), for COVID-19 immunization. The following information was reported: URTICARIA CHRONIC (non-serious) with onset Apr2021, outcome "not recovered", described as "spontaneous chronic urticaria, hives like ongoing hives/it's very frustrating for 6plus weeks i just keep breaking out for hives/breaking out with full hives". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of urticaria chronic.  Additional Information:Caller stated, "I have already called and reported AE for both covid19 vaccine and booster. I have broken out, third time this happened spontaneous chronic urticaria, hives like ongoing hives. It's hives not the wors thing in the world, it's very frustrating for 6plus weeks i just keep breaking out for hives for no reason. there are 2-3 clinical studies online that have talked about chronic spontaneous urticaria following the Pfizer biontech covid vaccine, there is few reports of instances. How long this is going to happen? Things like topical steroids like Benadryl Claritin none of those were working it loss temporarily then I got hives back. Clinical studies from PubMed. Kept breaking out in hives, gone through allergy testing, all immune testing, had probably 100 of test done over the last year and a half. Got my booster on the 31Aug and it was through this until last time. It took months the last time to go away, received 2nd booster on Apr2021 and have hives and lasted till Jul and then they just sorted went away, just started having this again when I got my booster on 31st." Caller clarified that she got the first dose, second dose and the booster from Pfizer, did not received other vaccines aside from Pfizer.Caller added, "looking at the internal medicine clinical case, case report from 07Jun, chronic spontaneous urticaria following Pfizer biontech corona virus disease 2019 messenger RNA vaccine, there's a quite few report. Also, in journal of allergy Immunology, there is a report that covid-19 vaccine may cause chronic spontaneous urticaria, i don't think it's just you guys, it is cross all the vaccines, Moderna, AstraZeneca. But none of this has reported on what to do. Doctor trying to give me topical steroidal anti-inflammatory, antihistamines and things, but this is going through 7-8 weeks. Keep getting time out of work, keep spending money for medical expenses, Im' breaking out with full hives, it's quite inconvenience. Caller stated that she's been tested for over 4000 allergens"  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201258999 Same patient/event, different COVID-19 vaccine dose;US-PFIZER INC-202201259523 Same patient/event, different COVID-19 vaccine dose;