allergic reaction to the Covid 19 vaccine; nerves in his right wrist are bothering him, feels the nerves moving up and down and his arms, and feeling like the nerves in his right arm were jumping; right hand won't relax, can't bend the fingers on his right hand, can't make a fist with his right hand; like he has no control of his arm; right wrist feels like needles and pins; right hand blew up with inflammation; His fingers on his right hand were swollen, right hand looked like it was going to explode; Like his right arm was agitated, right arm was still very uncomfortable; pain in his hand; This is a spontaneous report from a contactable consumer (patient). A 52-year-old male patient received the second dose of BNT162B2 (PFIZER COVID-19 VACCINE, lot number: EW0164), at the age of 51 years old, in right arm at single dose on 23Apr2021 16:30 for covid-19 immunization. Medical history included sleep apnea, congestive heart failure, high blood pressure and type 2 diabetes, seasonal allergy and covid-19 in May2020. The patient reported he had symptoms of the covid-19 virus in May2020. He had a positive covid-19 virus test and did quarantine. The patient reported he's never been allergic to any kind of medication. Concomitant medications included atenolol 50-25 mg at one tablet a day. The patient didn't know the name of the other medication combined with the atenolol. The patient reported one was for the heart and one was for the blood. He also took medication for seasonal allergies but declined to provide the name. The patient previously received a flu vaccine (NDC/Lot/Expiry: unknown) on 2020 that made him feel bad with a head cold. The patient previously received the first dose of BNT162B2 (lot number: EP7534), at the age of 51 years old, in right arm at single dose on 02Apr2021 16:30 for covid-19 immunization. The patient started having some problems maybe a week after that. He started feeling like the nerves in his right arm were jumping. Like his right arm was agitated. His finger on his right hand were swollen. The patient did get his vaccine in the right arm. He thought his arm was going to bother him after he got the vaccine. The nerves in his right wrist are bothering him. Like he felt the nerves moving up and down and his arms, like he had no control of his arm. His right hand blew up with inflammation. His right hand looked like it was going to explode. His right hand won't relax. On 01May2021 was when he noticed his arm acting funny. He would say that the swelling had gone down from taking the antibiotics but his right arm was still very uncomfortable and he couldn't bend the fingers on his right hand and he couldn't make a fist with his right hand. His right wrist felt like needle and pins. The patient went to the emergency room at a hospital two nights in a row on 04May2021 and 05May2021. The first time he had x-rays done. The second time he had x-rays and a sonogram of his right arm to check for blood clots and he had some blood work done. All of that came back negative. The emergency room doctor asked him what arm did receive BNT162B2 in, he told the doctor his right arm, the doctor told him he's having an allergic reaction to BNT162B2. The emergency room doctor prescribed him an antibiotic to take. He'd already finished the antibiotic and didn't recall the name, the bottle had been thrown away. The patient followed up with his primary care doctor on 13May2021 and was given a prescription for a muscle relaxer and motrin 600 mg to help bring the swelling and pain down in his hand. In the emergency department he had a right arm and right wrist x-ray. The doctor was trying to figure out why his right hand looked like a balloon. The only conclusion the emergency room doctor came up with was that he was having a reaction to BNT162B2. The outcome of events nerve in wrist bothering, felt nerve moving, feeling nerves jumping, right arm agitated, no control of arm, right hand won't relax and couldn't bend fingers was not recovered. The outcome of events hand blew up with inflammation, fingers on right hand swollen, right hand explode and pain in hand was recovering. The outcome of events wrist felt like needles and pins and allergic reaction to vaccine was unknown.  No follow-up attempts are needed. No further information is expected.