Told by his doctor to not get the second dose; Hives on and off all over his body; Liver values were elevated 100 points; This is a spontaneous report from a contactable consumer (patient). A 22-year-old male patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE (Batch/Lot number: EL9267 Expiration Date: 31May2021) via an unspecified route of administration in left deltoid on 11Feb2021 around noon as 1ST DOSE SINGLE DOSE for covid-19 immunisation. The patient medical history included Attention deficit hyperactivity disorder (ADHD) Diagnosed around July2020 or Aug2020. Of course, he thinks it has been lifelong and they did not know, nobody else in my family had it and they were like why is he crazy and sickle cell carrier (has known about this since birth). The allergic history of the patient included allergic to penicillin, He does have a history of sickle cell anemia. The concomitants medications of the patient included METHYLPHENIDATE HYDROCHLORIDE 5 mg less than a year. He does not use it a lot for ADHD. He stopped using it for a hot minute. He confirms that the medication is only taken as needed. The family medical history of the patient is reported as his aunt had a reaction to penicillin and his mother has heart issues and sickle cell, he got it from her. The patient did not receive any other vaccines within 4 weeks prior to the covid vaccine. The list of all vaccines administered on same date with the Pfizer vaccine considered as suspect and history of all previous immunization with the Pfizer vaccine considered as suspect are reported as none. He received the first dose of the Pfizer COVID 19 vaccine on 11Feb2021 and began having symptoms on 13Feb2021. He has been experiencing hives on and off all over his body since having then. He states that he has opted not to have the second dose due to these side effects and he does not wish to take the risk of potential increase adverse effects. He does have a history of sickle cell anemia. He has spoken with a physician who stated that maybe he shouldn't received the second dose of the vaccine. He states that he has made up his mind and it not receiving it. His question is in regards to his vaccination card. He states that now that things are beginning to open up again vaccine cards are starting to be check and he would like to know if we have any guidance on what he needs as far as documentation that he can not receive the second dose of the vaccine. States he thought he would most likely need documentation from his doctor but wanted to make sure that there wasn't a form or anything he needed to have filled out. who received his first dose of the Pfizer Covid-19 Vaccine and had an extremely bad reaction, such a bad reaction that he was told by his doctor to not get the second dose of the Pfizer Covid-19 Vaccine. Hives: Patient stateed that with his bad reaction, it happened 13Feb2021. It was two days after he got the vaccine, which was on 11Feb2021 when he received his first dose. He started having these reactions. He has hives all over randomly every day, every day, since 13Feb2021. He will get them in his mouth, gums, eyelids. He can't talk. He will get them in his armpits and if he sweats they are on his back. Treatment: they just gave him over the counter Allegra and it worked for a few days but then he had a bad one where it was half his body. Patient added they gave him an allergy injection, but it was the same thing where it only worked for a few days and then he had a bad one where it did not work anymore. Received Allergy injection as treatment. Liver values were elevated 100 points: patient added that so when at first he did not know if this was related or not, he went to the doctor the first time and his liver values were elevated 100 points as well. He had to change his diet and get back to a normal level as well. Patient added that he would also like to point out that there were non healthcare people giving the vaccine. He had a questionnaire about health stuff and they did not look at it until after he received the vaccine and they were like oh you have a blood thing. Patient told them yes, he is a carrier for sickle cell. He told them he hopes that it does not react, and he does not know if this is from the sickle cell or what it is. If they had looked at it, it would have been different. He was very pissed off they did not look at this health questionnaire until after he received the vaccine. Allegra: He stated that it is Fexofenadine, it has an expiration date of 21Apr2021 and the Manufacturer. Investigations: he has had three blood tests, an echocardiogram, a liver ultrasound, and a chest X-ray. The blood was all normal, no hepatitis A or B. Other than the liver thing he mentioned earlier but that resolved. His liver was normal.  He has a recheck today and they are going to give him the echo and xray results back. patient does not specify dates or have any additional information. He does not yet know the results to the echocardiogram or X-ray. Any AE(s) require a visit to Physician Office: Yes. He wants to know if since he is going to the doctor today, does he need a note from the doctor saying he should not have the second dose of the vaccine.  With things opening up there, people are asking about the vaccine card.  He wants to say he got a reaction but people might think he is making it up. Description of Product Complaint: Allegra: While discussing treatment for his hives, patient stated they just gave him over the counter Allegra and it worked for a few days but then he had a bad one where it was half his body. Patient stated that it is Fexofenadine, it has an expiration date of 21Apr2021 and the Manufacturer. He does not have any additional details to provide. The outcome of the events was reported as unknown for all and recovered for Liver disorder.   No follow-up attempts are needed. No further information is expected.