the allergist prescribed Fexofenadine HCl 180 mg and Famotidine 40 mg/allergic reaction; Had some irritation in throat; Burning sensation in esophagus; Hands swollen; Hives; Hives/patient did have pretty much the exact same reaction 30 years ago in 1991 when he had the measles vaccine and was told not to take further measles vaccines after that; Itching; red, itchy rash; Body rash; Body rash/patient did have pretty much the exact same reaction 30 years ago in 1991 when he had the measles vaccine and was told not to take further measles vaccines after that; This is a spontaneous report from a contactable consumer. A 58-years-old male patient (boyfriend) received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE; lot number and expiry date: unknown), via an unspecified route of administration, administered in Arm Left on 26Mar2021 08:30 (at 58-years-old) as single dose for COVID-19 immunization (So he wouldn't get Covid). The patient medical history was not reported. There were no concomitant medications. Caller reported that the patient did have pretty much the exact same reaction 30 years ago in 1991 when he had the measles vaccine and was told not to take further measles vaccines after that, patient had rash and hives. It was reported that after, the patient received the shot on 26Mar2021. 9 days later on 04Apr2021, he began he got a rash on his skin all over his body. He got rash, hives and itching. He also had irritation in his throat on 08Apr2021. So, he went to the doctor and the emergency room and he is taking medication and he has been taken the medication for approximately 4-5 days now. Medication worked during the day but by the next morning the rash and itching start all over that. Body rash: Caller reported that the body rash started in the patient's torso and under the patient's arms.  Caller reported that the rash spread up the patient's neck. Caller reported that the patient had a red, itchy rash (04Apr2021) and there were some hives involved. Caller reported that the patient went to his doctor on 05Apr2021 in terrible, miserable shape. Caller reported that the patient's physician prescribed prednisone. Caller reported that the patient took the prednisone later in the day on 05Apr2021. Caller reported that the patient went to work on 06Apr2021 and felt a little bit better but during the night of Tuesday, 06Apr2021, the rash began to spread again and the patient began to get the hives. Caller reported that the patient went to work on 07Apr2021, after taking a dose of prednisone. Caller reported that the patient called her around 8:00 PM on the evening of 07Apr2021 and stated it's starting all over again and it's spreading. Caller stated that the patient reported that he had hives on his neck, his shoulders, his body, his private parts, and his butt.  Hands swollen (07Apr2021): Caller reported that the patient's right hand was swelling and had swollen to at least 1 or 2 sizes bigger than normal. Caller reported that the patient's left hand was swelling some. Caller reported that the patient had difficulty squeezing both hands into fists due to the swelling. Caller reported that the patient went to the emergency room during the night of 07Apr2021. Caller reported that the emergency room provider prescribed a stronger dose of prednisone and administered prednisone to the patient in the emergency room. Caller reported that the patient did not go to work on 15Apr2021. Caller reported that the patient took a dose of the new, stronger prednisone and the prednisone seemed to settle the rash down a little bit. Caller reported that around 3:00 AM 07Apr2021 into Friday, 08Apr2021, the rash started all over again. Caller reported that the patient already had an appointment scheduled with his physician for 08Apr2021. Caller reported that the patient's physician referred him to an allergist and the allergist prescribed Fexofenadine HCl 180 mg and Famotidine 40 mg. Caller reported that so far, the fexofenadine and famotidine seem to be working. It was also reported that patient had Burning sensation in esophagus on 08Apr2021. Caller reported that the concern of her and the patient is that the patient is scheduled to get the second dose of the Covid-19 vaccine this Friday, 16Apr2021. Caller reported that the patient's allergist is recommending that he wait another 2 weeks to get the second dose of the Covid-19 vaccine. Caller reported that she and the patient are going to go to the appointment on 16Apr2021 and request for the appointment to be rescheduled for 2 weeks later. Caller reported that she is very concerned if the patient should be getting a second dose of the Covid-19 vaccine or not. Caller reported that the patient's allergist informed the patient that the patient could get Covid-19 and die from that, but that the patient won't die from the allergic reaction he is experiencing. Caller reported that she questions the allergist's opinion because of the misery that the patient has been in. Caller stated that she just needs some answers. Caller reported that the patient's allergist had stated that there was one other person that he was aware of that had a reaction 10 days after receiving the Covid-19 vaccine. Caller stated that it was odd that the rash had started 10 days in, and reported that the patient ruled out food and ruled out any changes as the patient hadn't changed soap or laundry detergent recently. Details were not provided for the other patient the allergist reported had a delayed reaction 10 days after receiving a Covid-19 vaccine. Caller reported that the patient's allergist thinks the Covid-19 vaccine caused the patient's reaction. Caller reported that she and the patient are scared about whether he should get the second dose of the Covid-19 vaccine and are unsure of what she and the patient should do at this point. Caller stated that she knows that people don't like to give advice, but that they say if you have immediate adverse reaction you shouldn't get the second dose of the Covid-19 vaccine. Caller stated that the patient's reaction wasn't immediate, and asked if it the rash should still be considered an adverse reaction and the patient should not go get second the second dose, or should the patient go with what his doctor said as it is recommended that you should listen to physician. Body rash: Caller reported that the patient's rash has dissipated for the most part. Caller reported that the patient still has some redness in parts, but the itching has subsided at least as of this morning, 12Apr2021, when she spoke to the patient around 6:00 AM. Hands swollen: Caller reported that the swelling the the patient's hands went down in the emergency room on Wednesday, 07Apr2021, night and began to dissipate on Thursday, 08Apr2021, with 50 mg of prednisone. Caller reported that she believes the patient's hands have returned to normal at this point, reporting that the patient is at work and as a mechanic, the patient has to work with hands. Caller reported that the patient's primary care physician did take blood work, but the patient's allergist said that the results of the bloodwork would probably not be relevant based on fact that the patient was on medication at the point that the labs were drawn. Caller reported that she believed the initial prescription for prednisone was 10 mg tablets. Caller reported that the patient had to take 4 tablets the first day, 3 tablets the second day, 2 tablets the third day, and 1 tablet after that. Caller reported that she and the patient are concerned about the patient getting the second dose of the Covid-19 vaccine. Caller reported that she and the patient are trying to anticipate what would happen after the patient received the second dose. Caller stated that she would like to know if someone would recommend or say it's ok for the patient to get the second dose of the Covid-19 vaccine, and if the patient has a reaction, that it won't be as life threatening as getting Covid-19. Prednisone did not help rash, hives, or itching (10 mg tablets, dispensed in pharmacy bottle). Outcome of the events red, itchy rash; body rash; body rash/patient did have pretty much the exact same reaction 30 years ago in 1991 when he had the measles vaccine and was told not to take further measles vaccines after that; and hands swollen was recovering. Events had some irritation in throat and burning sensation in esophagus was recovered on 09Apr2021; while other events was unknown.  Information on the lot/batch number has been requested.