Itchy, sometimes, sometimes not; Hurting; Hot to touch at the injection site; Swollen at the injection site; Discomfort; Lump at the injection site; Tiredness; Red place at the injection site; This is a spontaneous report from a contactable consumer (Patient, reported for self). A 76-years-old female Reporter received second dose of BNT162B2 (Solution injection; Batch/Lot Number: EN6208, Expiry date UNKNOWN), via an unspecified route of administration, administered in upper Arm Left on 13Mar2021 at 11:00 as single dose for COVID-19 immunisation. The Reporter medical history and concomitant medications. Reporter previously took first dose of BNT162B2 (Solution injection; Batch/Lot Number: EL9266, Expiry date UNKNOWN), via an unspecified route of administration, administered in upper Arm Left on 20Feb2021 at 11:15 as single dose for COVID-19 immunisation and patient was feeling tired. Reporter did not receive any other vaccinations within four weeks prior to the first administration date of the suspect vaccine. No additional Vaccines administered on same date of the Pfizer suspect. No family Medical History. Reporter (patient) stated with her second vaccine patient had a delayed reaction, not immediate and didn't know that could happen. On 17Mar2021, the Reporter experienced red place at the injection site, Lump at the injection site, Discomfort and tiredness. On 18Mar2021, the Reporter experienced Swollen at the injection site, Hot to touch at the injection site. On an unspecified date the Reporter experienced, Itchy, sometimes, sometimes not and Hurting. Additional Context: Patient stated she followed up with her Pharmacist who instructed her to contact Pfizer and report her experiences. Patient stated she didn't know you could have a delayed reaction, patient thought it would be immediate. The pharmacist told her she could have a delayed reaction to the vaccine. Reporter stated with her second dose patient had a delayed reaction. Reporter stated she had her vaccine on Saturday but she did not have a reaction until the following week, Wednesday on 17Mar2021. Reporter said she had discomfort, tiredness, there was a red, hot to the touch lump on her arm at the injection site. Patient said it continued to get bigger and worse on 18Mar2021 and 19Mar2021. The site spread and became hot to the touch, like there were 3 areas connecting. By Thursday 18Mar2021, the areas merged together at the upper arm. Reporter stated the area was about 3 inches wide and 5 inches long and they were connected, swollen, and hot to touch. Reporter stated by Sunday 21Mar2021, the area had faded in the middle and was better. By Tuesday 23Mar2021, her reactions were gone. Reporter also provide that she was sometimes itchy, sometimes not, and was hurting. No further details provided. No investigation assessment was reported. The adverse events did not require a visit to Emergency Room nor Physician Office nor hospitalized. Therapeutic measures were taken as a result of swollen at the injection site (injection site swelling). Reporter stated patient took Ibuprofen for the inflammation. Reporter stated patient did not have further information available for the Ibuprofen. The clinical outcome of all the events was reported as recovered on 23Mar2021.  No follow-up attempts are possible. No further information is expected.