clogging of ears; clogging of sinuses; sinus infection; ear infection; hearing loss of about 35% in right ear; Mastoditis; partial paralysis of my right side of the face; This is a spontaneous report from contactable consumer. The reporter is the patient. A 56-year-old male patient received BNT162b2 (BNT162B2), on 29Nov2021 as dose 3 (booster), single (Lot number: FJ1620) at the age of 56 years, in left arm for covid-19 immunisation. The patient had no relevant medical history, no known allergies. There were no concomitant medications. No other vaccine in four weeks, no other medications in two weeks. Vaccination history included: BNT162b2 (dose number: 2, Batch/Lot No: EW 0169, location of injection: arm left), administration date: 24Apr2021, when the patient was 55-year-old, for COVID-19 Immunization; BNT162b2 (dose number: 1, Batch/Lot No: EW0150, location of injection: arm left), administration date: 03Apr2021, when the patient was 55-year-old, for COVID-19 Immunization. Patient had no covid prior vaccination. Patient had covid tested post vaccination: it was nasal swab on 25Jul2022, covid test result negative. The following information was reported: mastoiditis (disability) with onset 09Dec2021, outcome "not recovered", described as "mastoditis"; ear discomfort (disability) with onset 09Dec2021, outcome "not recovered", described as "clogging of ears "; sinus congestion (disability) with onset 09Dec2021, outcome "not recovered", described as "clogging of sinuses"; ear infection (disability) with onset 09Dec2021, outcome "not recovered"; deafness unilateral (disability) with onset 09Dec2021, outcome "not recovered", described as "hearing loss of about 35% in right ear"; facial paralysis (disability) with onset 09Dec2021, outcome "not recovered", described as "partial paralysis of my right side of the face"; sinusitis (disability) with onset 09Dec2021, outcome "not recovered", described as "sinus infection". On 09Dec2021, about 10 days after the booster vaccine, patient had severe clogging of ears and sinuses. The doctor suggested using Flonase thinking it was sinus infection, but it continued for few weeks. Then patient visited the Doctor's office for in-person consultation with a RN, and it was determined that patient had ear infection in his right ear. He was given antibiotics to get over that. After 2 weeks of dose, he still had his right ear clogged and could not hear properly. So, his RN suggested going to an ENT. The ENT RN asked to take an audiology test, and determined he had hearing loss of about 35% in right ear. Patient was put on Cortisoids as doctor thought he had viral infection. Patient also went and had MRI and it was determined that there was some Mastoditis. Had partial paralysis of his right side of the face. ENT RN prescribed more antibiotics and cortisoids. Patient also had CT scan taken and another round of audiology hearing test. His hearing loss persisted. His Primary Care Doctor thought booster caused it. Therapeutic measures were taken as a result of ear discomfort, sinus congestion, sinusitis, ear infection, deafness unilateral, mastoiditis, facial paralysis: including antibiotics and cortisoids to reverse hearing loss. The events doctor or other healthcare professional office/ clinic visit, disability or permanent damage.