Nerve damage; Dizziness; Lost her hearing in her right ear; This is a spontaneous report from a contactable consumer (patient, self-reported). A 51-year-old female patient received first dose of BNT162B2 (PFIZER-BIONTEC COVID-19 mRNA VACCINE, Solution for injection, lot number: EW0162 and expiry date: Jul2021), via an unspecified route of administration, in Arm Left, on 08Apr2021, as a single dose for COVID-19 immunization. The patient's medical history included thyroid problem and seasonal allergies. The patient did not have any family medical history relevant to events. The patient did not receive any vaccine within 4 weeks prior to vaccination. Concomitant medications were not reported. The patient reported that she received the first dose of the Pfizer COVID- 19 vaccine on 08Apr2021 and one day later on 10Apr2021 when she woke up in the morning, she lost hearing on her right ear. She mentioned her doctor told her she should call. She called her physician, and she did not have any accident or anything outside, she was healthy, she only had the vaccine. It bothers her. She described noise in her ear like a dog barking and her ear feels like a big pressure and every time she heard crying or talking or a loud sound, she could not hear. Her doctor never heard of this with the vaccine. She went to see a primary doctor and her HCP said this was due to allergies and pollen, because it was April and he said that he never heard of a hearing loss for COVID vaccine and prescribed Meclizine. She did not have allergy problems and anything wrong with her sinus or a runny nose, so she decided to go to a professional doctor, ear nose and throat. Then she went to see a ear nose and throat doctor on 15Apr2021 and 21Apr2021, and he said that he heard about a couple of cases with the vaccine and he tested her by performing a hearing test and it was true that the COVID-19 vaccine caused nerve damage. She was deaf in her right ear, her test came back horrible, she could not hear. The patient (withheld) said that this was because of the COVID virus in the vaccine, that destroyed nerves in the right ear and that was why she could not hear. She was currently taking Prednisone 10mg tablets, take 6 tablets for 3 days, and then 5 tablets for 3 days, and then 4 tablets and changes every 3 days. The patient was prescribed with meclizine 25mg tablets to take 3 times a day for dizziness. She did not have the dizziness when she took the pills. The patient also reported that she was healthy before and she usually takes the flu shot every year and this never had happened before. She was COVID-19 positive on 06Feb2021. She had COVID on 14Feb2021. The events did not require a visit to emergency room. The events were resulted in physician office visit. She would like to verify if this has happened to someone else before and if her hearing will return. The COVID-19 vaccine destroyed her health, and second vaccine was scheduled for 03May2021. The patient would like to know if she should get the second dose of the COVID-19 vaccine after presenting side effects from the first dose. The patient got response that 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. The patient was referred to speak to your healthcare provider about the risks of the vaccine compared to the risks of potentially not being fully protected against COVID-19 infection. The patient's healthcare provider knows your health situation and has access to information that can better help inform this decision.  Follow up attempts are possible further information is expected