super anxious; Breathing a little rapid; hives on her legs, arms, and neck that have been extremely itchy; Arm was a little itchy/itching/itchy arm was very mild; itchy arm was due to irritation from the band aid that was applied after her vaccination; This is a spontaneous report from a contactable consumer (parent). A 29-years-old female patient received bnt162b2 (BNT162B2), dose 1 via an unspecified route of administration, administered in Arm Left on 02May2021 at 14:00 (Batch/Lot Number: EW0173) as 1ST DOSE, SINGLE for covid-19 immunization. Facility in which the vaccine was give was a 'mass vaccination site'. No other vaccines were given within 4 weeks. Medical history included cellulitis (at the Age: 3 or 4 years old, Treatment included antibiotics), generalized anxiety disorder from an unknown date and unknown if ongoing (diagnosed with generalized anxiety 10-12 years ago). No family history was provided as patient was adopted. Concomitant medication included multivitamin [MINERALS NOS;VITAMINS NOS] (Reported as Multi-Vitamin and vitamins) from  an unspecified date and ongoing for general health and Lactaid (occasionally). The patient previously had a vaccine (unable to recall which vaccine caused the reaction event occurred at 3-4 years old) and experienced localized, big red circle around the injection area.  The patient experienced hives on her legs, arms, and neck that have been extremely itchy on 09May2021, arm was a little itchy/itching/itchy arm was very mild on 02May2021, itchy arm was due to irritation from the band aid that was applied after her vaccination on 02May2021 breathing a little rapid  on 10May2021 and super anxious  on an unspecified date, Treatment was given for the events hives and itching. The clinical course was reported as follows the patients arm began to itch a couple hours after the patient received the first dose  the Covid-19 vaccine on 02May2021. The patient thought the itchy arm was due to irritation from the band aid that was applied after her vaccination.  She had some itching for a day or two after the vaccine was administered also stated itchy arm occurred on and off for one day. The patients arm was a little itchy, but other than that she did not  have anything major on until around midnight on 09May2021. Patient woke up and had hives everywhere. Stated she had Hives on her legs, arms, and neck that have been extremely itchy.  The hives  come and go and she has taken Benadryl but there has been no improvement. The patient's  primary care physician was contacted on 10May2021. The event resulted in a physician office visit. The physician noted the  patients breathing was a little rapid. Patient thought her breathing was a little rapid because she was super anxious. Patient denied having any difficulty breathing. The patient reported  she didn't drink anything new, didn't eat anything new, didn't have new hair or shower products, no new laundry detergent was being used. The  physician stated that from the size and extent of the hives, the hives were probably from the Covid-19 vaccine. Caller reported her daughters hives have stayed pretty much the same. One hive will disappear and then another will appear on the patients body somewhere else. The  hives are on her neck, arms and legs are very itchy and appear as big blotches. The patient took pictures of her hives and would show them to her doctor in the event they improved before the patient could be seen. Caller reported that the patient would be able to share the photos of her hives with Pfizer if requested. The patient is due to have her second dose of the Covid-19 vaccine. Caller stated the  patient's physician leaned toward the patient not getting the second dose. Caller preferred to get more information from Pfizer prior to canceling the patient's second appointment. The clinical outcome of the event Hives and itching was ongoing, Breathing a little rapid was recovered on 10May2021 and the remaining events were unknown.  follow-up attempts are needed. further information is requested.