Blister with pus that is really red at injection site.; Blister with pus that is really red at injection site.; Itching on left arm; She is unable to tell if she just wrote the date down wrong or if that was supposed to be the expiration.; Left arm sore and could barely move it; Left arm sore and could barely move it; This is a spontaneous report from a contactable consumer (Patient) or other non-HCP., who reported for herself.  A 68-years-old female received third dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot Number was FF2593) via an unspecified route of administration, administered in Arm Left on 22Oct2021 (at 12:00) (age at the time of vaccination was 68-years-old) as DOSE 3 (BOOSTER), SINGLE for COVID-19 immunization. The patient had no medical history including any illness at time of vaccination. Concomitant medications were not reported. The patient had no prior vaccinations within four weeks prior to the first administration date of the suspect vaccines. The patient had no adverse events following prior vaccinations. Previously, the patient received second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot Number was EN6207) via an unspecified route of administration, on 10Mar2021 (age at the time of vaccination was 68-years-old) as DOSE 2, SINGLE for COVID-19 immunization. Also, the patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot Number was EC9266) via an unspecified route of administration, administered in left arm (2 inches from top of left shoulder), on 17Feb2021 (age at the time of vaccination was 68-years-old) as DOSE 1, SINGLE for COVID-19 immunization. On 22Oct2021, the patient experienced She is unable to tell if she just wrote the date down wrong or if that was supposed to be the expiration and Left arm sore and could barely move it. On 25Oct2021, the patient experienced Itching on left arm. On 26Oct2021, the patient experienced Blister with pus that is really red at injection site. Additional Information: The patient just noticed last night a lot of itching, especially on left arm, where she took the shot. It was itching quite a bit. Then the injection site, there was a blister with pus that was really red. Blister was full and had not burst yet. The itching was really bad last night. This morning she did not feel itching. The blister was the same. On the first and second day, the left arm was very sore and she could barely move it. Regarding the expiration, the person who gave the booster dose wrote down 21Oct2021 on the card. She was unable to tell if she just wrote the date down wrong or if that was supposed to be the expiration. She would like to know if the blister bursts, does she need to go to the doctor. Right now her arm is itching but she is making an effort not to scratch it. The clinical outcome of Itching on left arm and Left arm sore and could barely move it was recovering, while clinical outcome of Blister with pus that is really red at injection site and the clinical outcome of She is unable to tell if she just wrote the date down wrong or if that was supposed to be the expiration was unknown.