she has numbness in her four fingers and besides they are swollen, red and infected; She believes that it didn't go to the IM route and instead to subcutaneous; she also had a bright burn on her injection site.; The circle has dried up. The skin is scaly/It is burnt around it and dry; The first three fingers are more painful and tender.; The first three fingers are more painful and tender.; fingers feel puffy; At the site where the booster was given there is a circle about 5cm/It was red and swollen; At the site where the booster was given there is a circle about 5cm/It was red and swollen; numbness in her four fingers; she has numbness in her four fingers and besides they are swollen, red and infected; This is a spontaneous report received from a contactable reporter(s) (Other HCP) from medical information team. The reporter is the patient.  A 46 year-old female patient received bnt162b2 (BNT162B2), subcutaneous, administered in arm right, administration date 30Dec2021 12:00 (Lot number: B302580) at the age of 46 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Hypertension" (unspecified if ongoing); "Anemia" (unspecified if ongoing), notes: Additional Information for Other Conditions: She has been treated for anemia in the past, but it is resolved. The patient took concomitant medications. Vaccination history included: Bnt162b2 (Dose 1, Expiry: 31Mar2021, Lot: EJ1685, she had no issue with the 1st and 2nd dose of the Pfizer covid vaccine), administration date: 27Dec2020, when the patient was 45 years old, for COVID-19 Immunization, reaction(s): "she had no issue"; Bnt162b2 (Dose 2, Expiry: unknown, Lot: EL3346, she had no issue with the 1st and 2nd dose of the Pfizer covid vaccine), administration date: 18Jan2021, when the patient was 45 years old, for COVID-19 Immunization, reaction(s): "she had no issue". The following information was reported: HYPOAESTHESIA (non-serious) with onset 31Dec2021, outcome "unknown", described as "numbness in her four fingers"; PERIPHERAL SWELLING (non-serious) with onset 31Dec2021, outcome "unknown", LOCALISED INFECTION (non-serious), outcome "unknown" and all described as "she has numbness in her four fingers and besides they are swollen, red and infected"; INCORRECT ROUTE OF PRODUCT ADMINISTRATION (non-serious), outcome "unknown", described as "She believes that it didn't go to the IM route and instead to subcutaneous"; VACCINATION SITE PAIN (non-serious), outcome "unknown", described as "she also had a bright burn on her injection site."; INJECTION SITE ERYTHEMA (non-serious), VACCINATION SITE SWELLING (non-serious) all with onset 31Dec2021, outcome "unknown" and all described as "At the site where the booster was given there is a circle about 5cm/It was red and swollen"; VACCINATION SITE DRYNESS (non-serious), outcome "unknown", described as "The circle has dried up. The skin is scaly/It is burnt around it and dry"; PAIN IN EXTREMITY (non-serious), TENDERNESS (non-serious), outcome "unknown" and all described as "The first three fingers are more painful and tender."; SKIN SWELLING (non-serious), outcome "unknown", described as "fingers feel puffy". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information:Patient had no issue with the 1st and 2nd dose of the Pfizer covid vaccine. She has a concern with her booster as she wants to find out if the booster was given properly through IM. She believes that it didn't go to the IM route and instead to subcutaneous, she also had a 'bright burn' on her injection site. At the site where the booster was given there is a circle about 5cm. It is about the size of the bottom of a Bath and Body Works spray bottle. It is on the right arm. The numbness started the second day after booster.  It was red and swollen on the second day. She was trying to not touch it at first then realized it. She has taken pictures from the different days. The circle has dried up. The skin is scaly. Is it an intramuscular injection? It is burnt around it and dry. If it was supposed to be an intramuscular injection, then it burned the skin. Maybe the IM injection bothered the medial nerve. It is a circle burned around the injection. The circle was red and went through phase of healing. It is dried and crusted. She went to withheld and they could see her arm from drive thru window. There is clear marking. The skin is dried.  Patient Concomitant Medications includes hypertension medication and a vitamin. Patient Description of complaint includes Product is Pfizer Covid19 Vaccine. Caller received booster dose and wants to report adverse event. She had no issues with first two, but with the booster.  At first, she thought maybe she needed a second booster shot if the booster did not go in far enough. If it didn't go IM and just went underneath the skin and the booster just burned the skin, is she really protected? She received the booster at withheld. Patient did any AE(s) require a visit to: Emergency Room: No; Physician Office: No. Sample of the product available to be returned, if requested (Y/N): not provided.  No follow-up attempts are possible. No further information is expected.