Caller states the patient had an anaphylactic reaction twice that caused her to go to the emergency room; couldn't swallow; right side of the patient's face swelled up and her lips were numb; right side of the patient's face swelled up and her lips were numb; face numb; hands itching; tongue had swelled up; voice was scratchy; This is a spontaneous report from a contactable consumer, Reporter's sister via Pfizer-sponsored. A 60-year-old female patient received the second dose of BNT162b2 (Pfizer-Biontech COVID-19 vaccine, Solution for injection, Lot number: unknown, NDC number: Unknown, Ex-piry Date: Unknown) via an unspecified route of administration on 01Mar2021 on an unknown ana-tomical location as a single dose for COVID-19 immunization. Caller provided that her sister got the vaccine for COVID Prevention and because the patient has a handicapped, bedridden husband who has MS and is immune compromised, and it was to help prevent him from getting sick. Caller reported that the patient received the product during the daytime, all the women at the patient's job, which was home health payroll, everyone left to get the vaccine during work hours, like in the AM at around lunch time. Patient's medical history and concomitant medications were unknown. Patient has not received any prior vaccinations within 4 weeks. Patient had no other vaccines on the same day as the suspect product. Patient received first dose of BNT162b2 (Pfizer-Biontech COVID-19 vaccine, Solution for injection, Lot number: unknown, NDC number: Unknown, Expiry Date: Unknown) on 08Feb2021 with no reaction. She worked for a health agency and the whole office went and got it. Caller provided that her sister had a reaction the first time, on 03Apr2021, where her sister woke up with itching started in her hands and ended up migrating to her whole body. By morning patient's tongue had swelled up, couldn't swallow and her voice was scratchy, like the caller couldn't understand her sister's speech well. Caller provided that her sister went to the ER and said there was a whole team giving her urgent care, medication, and such. Caller reported that her sister said the ER didn't find anything in her bloodwork, and the caller did not think the patient was being treated for any other medical conditions, and caller did not think her sister is on any medications, but caller said to not quote her on that. Caller knew her sister had a weight problem, but she did not know if her sister needed blood pressure medication or anything. Caller reported her sister said that the bloodwork from the ER did not find any-thing, and the patient was not admitted to the hospital. Caller reported that at this time, her sister's adverse events were no longer ongoing as her sister was given Steroids, like Prednisone, Benadryl and Famotidine, and she took those products as recommended by the doctor. Caller did not know the end date of her sister's events; all she knew was that the reaction initially started on 03Apr2021. Caller stated that her sister was allergic to nothing, and she has never had incidences of itching like that, where the itching was so bad that she was stripping down and the patient's daughter was patting the patient down with witch hazel. Caller stated that ER released the patient and gave her some medications and such. Caller stated that a day or so later, there was a second round of reaction: the right side of the patient's face swelled up and numb and her lips were numb, like when people have a dental procedure. Lips were numb for a while. Upon completion of the medications she was given, the reactions stopped. Patient regularly saw the family doctor. She would go back to see her Doctor on Thursday. HCP Information was unknown to the caller, but caller stated that her sister had been recommended to go to her PCP and get an Epi Pen. Caller stated that knock on wood, so far, her sister was holding her own, and it had not happened again. Caller stated that she was reporting the data that her sister gave to her after having the Pfizer vaccination. Caller stated the patient had an anaphylactic reaction twice that caused her to go to the emergency room. No relevant tests were done. Caller stated that she had the dates that she had her shots and where she had her shot at. Caller stated somebody called and reported it already. Caller stated she was trying to press three but never could figure out which prompts was. Caller stated they said if she called this number, they would tell her at the medical information department if this occurrence has happened to other people, like statistics. Caller stated they tried to call this number, but it was too long of a wait. Caller stated that she did not have the vaccination card, she never asked for them. Caller does not have card with her at time of call for LOT, NDC, Expiry date. Caller stated that she knew that all the COVID vaccines are just in the Emergency Use Authorization stage and in clinical trials, but caller really thought that all manufacturers should be advertising that they would like feedback from patients. Caller has not heard anything from any of the manufacturers saying that people are welcome to reach out and report side effects. Caller states that she only knew to call because she used to be a Home Health Worker, and she thought this is an important data. Caller has never seen on any of her 19 TV channels about calling to report. Caller stated that the girl who first answered her call, read a clinical data sheet about joint pain being seen in 23% of patient's and not knowing a percentage for anaphylactic reactions, caller was wondering if this was true. Caller verified that she just wanted to ask basically that patient was not alone, if other people might have had that happen too. Caller stated that she tried to call, and it would ask another question and it would say press 1 or 2, then it would ask other questions and it would say press 1 or 2, she never got an option 3. Caller asked: how much percentage, has anyone reported this side effects weeks after the second dose. Caller was wondering if this reaction could have been from the vaccine. Investigation Assessment: No. The outcome of the events were unknown.  Information on the lot/batch number has been requested.