now her daughter is blowing up into a giant blueberry; she was really itchy all night long; up all night the first night; thought she had a rash; hives; This is a spontaneous report from a non-contactable consumer (parent). A female patient of an unspecified age received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE; lot number and expiry date: unknown), via an unspecified route of administration on 13Jan2021 at single dose for COVID-19 immunization. Medical history included drug hypersensitivity from an unknown date and unknown if ongoing caller knows her daughter is allergic to antibiotics. The patient's concomitant medications were not reported. The reporter is upset right now, her daughter (patient) works in a Hospital, and received her vaccine (clarified as COVID vaccine) the day before yesterday (13Jan2021), her daughter was up all night the first night, she thought she had a rash (Jan2021), by yesterday afternoon, she was starting to get hives (Jan2021), they are getting worse, reporter will ask her to take pictures of the hives, but this is getting downplayed, she contacted whoever administered the vaccination, reporter thought she saw where there was an antibiotic involved, but it is not on the ingredient list. They asked if there was a little antibiotic in it. This is her grown child, reporter states she (the reporter) sent mean messages on social site to the company. Stated nothing bad better happen, she warned her daughter not to get it, reporter has a family history of bad reactions, and she said to not do it, but they say CDC recommendation, she has told everyone who is blood related to not get the vaccination, but per the CDC website, her daughter wouldn't listen, and she went in and was getting pressure from her workplace and not only that, her daughter is having this reaction downplayed, to the point where, they are thinking of convincing her to go back for shot #2, which is stupid, the reporter said don't do it, it's like Willa Wonka, she said don't do it, don't do it,  and now her daughter is blowing up into a giant blueberry. When asked if she would be willing to go through a report, reporter said all she knows, her daughter has giant hives and they are getting worse, this is day 2, stated don't worry, Pfizer will know, this problem was reported to her daughter's doctor and she did report it, they told her, since it happened the next day, it was probably not that bad, but reporter said it started that very night, she said to her mother (reporter),  that she was really itchy all night long (13Jan2021), and reporter asked if she had hives, and right caller said that, her daughter said yes, she didn't realize it was. Reporter wanted to know why she thinks there is some type of antibiotic involved, and she looked at ingredients, she looked and it didn't look like it, but something is telling the caller- she thinks her daughter knows what it was, which is why she is so sensitive, reporter knows her daughter is allergic to antibiotics. They asked if agent knew anything about these hives, what will happen. The doctor didn't even tell her daughter to take antihistamines, but reporter told her to take them immediately, they said it was  nothing, and signed her up for shot 2, to stay on track, which reporter thinks is idiotic. Advised, for direct access to medical information on Pfizer products, they can visit web site. The reporter was provided with a phone number of #, option 3, and hours of operation of Monday through Sunday, 8AM to 11PM for COVID inquiries, prior to cold transfer onto the line, to wait for the next available agent. Reporter declined to provide any additional information and was cold transferred to Organization. The outcome of the events was unknown.  No follow-up attempts are possible; information about lot/batch number cannot be obtained.