she ended up in the urgent care with a really bad sinus, ear and throat infection; Reported her infection was on the right side, and effected her right ear, sinus, and throat.; She said she thought that her ear infection may be effecting her equilibrium, and causing the nausea; She said she thought that her ear infection may be effecting her equilibrium, and causing the nausea; she recently had really bad heartburn, but knew it wasn't the stomach flu that had been going around in her area because she had no diarrhea, or nausea, only heartburn; she ended up in the urgent care with a really bad sinus, ear and throat injection.; she ended up in the urgent care with a really bad sinus, ear and throat injection.; This is a spontaneous report received from contactable reporter(s) (Other HCP) from medical information team for a Pfizer sponsored program (159558). The reporter is the patient.  A 68 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 24Mar2021 13:00 (Lot number: ER8727) at the age of 68 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "GERD" (ongoing); "Heartburn" (ongoing); "Hiatal hernia" (ongoing); "seasonal allergies" (unspecified if ongoing). Concomitant medication(s) included: PRILOSEC [OMEPRAZOLE MAGNESIUM] taken for gastrooesophageal reflux disease. Vaccination history included: Prevnar 13, administration date: 12Feb2021. The following information was reported: SINUSITIS (non-serious), EAR INFECTION (non-serious) all with onset Apr2021, outcome "recovering" and all described as "she ended up in the urgent care with a really bad sinus, ear and throat injection."; PHARYNGITIS (non-serious), outcome "unknown", described as "she ended up in the urgent care with a really bad sinus, ear and throat infection"; DYSPEPSIA (non-serious) with onset Apr2021, outcome "unknown", described as "she recently had really bad heartburn, but knew it wasn't the stomach flu that had been going around in her area because she had no diarrhea, or nausea, only heartburn"; INFECTION (non-serious), outcome "unknown", described as "Reported her infection was on the right side, and effected her right ear, sinus, and throat."; NAUSEA (non-serious), BALANCE DISORDER (non-serious) all with onset Apr2021, outcome "unknown" and all described as "She said she thought that her ear infection may be effecting her equilibrium, and causing the nausea". The events "she ended up in the urgent care with a really bad sinus, ear and throat injection.", "she ended up in the urgent care with a really bad sinus, ear and throat injection.", "she ended up in the urgent care with a really bad sinus, ear and throat infection", "she recently had really bad heartburn, but knew it wasn't the stomach flu that had been going around in her area because she had no diarrhea, or nausea, only heartburn", "reported her infection was on the right side, and effected her right ear, sinus, and throat.", "she said she thought that her ear infection may be effecting her equilibrium, and causing the nausea" and "she said she thought that her ear infection may be effecting her equilibrium, and causing the nausea" were evaluated at the physician office visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of sinusitis, ear infection, pharyngitis, dyspepsia, infection, nausea, balance disorder.  Additional Information: The patient had her second dose scheduled the previous day but she ended up in the urgent care with a really bad sinus, ear and throat injection. The urgent care told her to cancel her second appointment. She was given 10 days of antibiotics. The patient had GERD, off and on, since the 1980s. For the most part, her GERD was controlled. She said if her GERD got really bad, she would have an EGD. She said when she has had an EGD, she has not had an ulcer, just irritation. The patient had a Hiatal Hernia for at least 10-20 years. The patient was supposed to have her second COVID-19 Vaccine dose on 14Apr2021. She went to an urgent care on 14Apr2021 because her doctor would not see her if she had an upper respiratory infection. She said she had gone to the urgent care doctor to see if she should get the second COVID-19 Vaccine dose since she had a sinus and ear infection. She said the urgent care doctor told her to cancel her second COVID-19 Vaccine dose for the time and prescribed a 10-day dose of antibiotics. Stated she was given a 10-day prescription of the antibiotic, Cefdinir 300mg capsule. She said she was to take 1 Cefdinir 300mg capsule every 12 hours for 10 days. She said she started the Cefdinir 300mg capsules yesterday (14Apr2021) and had taken 2 Cefdinir 300mg capsules. She said the Cefdinir 300mg capsules were dispensed in a pharmacy bottle, and had no NDC, Lot, and Expiration Date. She said the Cefdinir 300mg capsule manufacturer was listed. Reported she was also prescribed generic Zofran (clarified as Ondansetron 4mg tablet) for nausea. She said she thought that her ear infection may be affecting her equilibrium and causing the nausea. She said she was dispensed 12 Ondansetron 4mg tablets, and she was to take 1 Ondansetron 4mg tablet every 6 hours for nausea for 3 days. She said she did not take any Ondansetron 4mg tablets yet. She said the Ondansetron 4mg tablets were dispensed in the manufacturer blister pack, providing: NDC Number: 5723707710, UPC Number: 357237077108, Lot Number: OD0420032B, Expiration Date: Sep2024. Reported she had a history of real bad GERD and heartburn. She said she would take any over-the-counter product if her GERD got real bad. She said she currently took (over-the-counter) Prilosec (20mg tablet). She said the Prilosec did not work, as well as she would like. Prilosec OTC 20mg. Product strength and count size dispensed was 40mg tablet. NDC Number: 37000-455-02, Lot Number: 0326171972, Expiration Date: Jul2023. Reported when she had really bad heartburn, she took whatever other over-the-counter product there was to help her heartburn. For Only: Vaccination Facility Type for Only was hospital. Vaccine was not administered at Military Facility. Emergency Room visit was not required. No prior vaccinations (within 4 weeks).   No follow-up attempts are needed. No further information is expected.