severe psoriasis; skin infection; burn blister; he got reactions on the skin of his feet and hands after the booster shot.; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 55-year-old male patient received BNT162b2 (BNT162B2), in Oct2021 as dose 3 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: BNT162b2 (First Dose: 23Jan2021, LOT: EN5318, NDC, EXP: Unknown), administration date: 23Jan2021, when the patient was 54-year-old, for COVID-19 immunization, reaction(s): "Covid toe", "Covid toe"; BNT162b2 (Second Dose: 13Feb2021, LOT: same number, EN5318, NDC, EXP: Unknown), administration date: 13Feb2021, when the patient was 54-year-old, for COVID-19 immunization, reaction(s): "Covid toe", "Covid toe". The following information was reported: HYPERSENSITIVITY (non-serious) with onset Oct2021, outcome "unknown", described as "he got reactions on the skin of his feet and hands after the booster shot."; PSORIASIS (medically significant), outcome "unknown", described as "severe psoriasis"; SKIN INFECTION (non-serious), outcome "unknown"; BURNS SECOND DEGREE (non-serious), outcome "unknown", described as "burn blister". The events "severe psoriasis", "he got reactions on the skin of his feet and hands after the booster shot.", "skin infection" and "burn blister" required physician office visit and emergency room visit. The patient underwent the following laboratory tests and procedures: Biopsy: Unknown Results, notes: They did biopsies of hands and feet; tests: everything was fine; Vitamin D: low. Therapeutic measures were taken as a result of psoriasis, hypersensitivity, skin infection, burns second degree.  Clinical course: The patient got Covid toe and had reactions on skin of feet and hands after receiving booster shot. Clarified with the caller, the details provided by the transferring agent. Got booster shot, he thinks, back in Mar2021. Had to get it from where he worked in Oct2021.Started losing skin of feet, in one foot, the left foot. Doctor said it was severe athlete's foot. When he went to doctor, it totally grew to burn blister and was breaking open. Had to go to hospital to wound clinic and to an infectious disease agent. Dealt with them a couple of months. Then, his right foot broke out into the same thing. Finally, they sent him to dermatology, and said his hands had broken out the same as the feet. They said it was severe psoriasis but it was between his hands and fingers. Finally, with doctor, he told them he had the Pfizer vaccine. They told him he had Covid toe. When caller looked at pictures, it was exactly what he had. Went to the doctor the other day and they gave him print out of this. Said he should contact Pfizer. They did biopsies of hands and feet. Kept coming back and was getting infections. It was skin infection, didn't have it in his blood or nothing. Reactions on skin of feet and hands: Still got spots on hands feet, finally starting to clear up. Right hand is clearing up, left hand not clearing up yet. Treatment was They gave all kinds of cream and SAVs. Was a test dummy, they didn't know what he had. Nothing was working. Clarified that when caller previously mentioned going to hospital, that he was not admitted to hospital. Had to go to hospital, to the wound clinic. Saw infectious disease doctor. Wound in the feet was totally peeling and was down to between toes and underneath his feet and couldn't walk. Had to go to hospital, to the wound clinic. Saw infectious disease doctor. Wound in the feet was totally peeling and was down to between toes and underneath his feet and couldn't walk.  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202300070629 same reporter/patient, different dose/AE.;