had a baseball sized reaction area and the area was raised and very warm; he had a pretty gnarly arm rash; he had site reactions; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the parent.  A 12 year-old male patient received bnt162b2 (BNT162B2), administered in arm right, administration date Jun2021 (Batch/Lot number: unknown) as dose 1, single and administered in arm right, administration date Jun2021 (Batch/Lot number: unknown) as dose 2, single for covid-19 immunisation. Relevant medical history included: "seasonal allergies" (ongoing), notes: has pretty severe seasonal allergies; "autoimmune problems" (unspecified if ongoing), notes: Caller states the patient suffers from autoimmune problems. Family history included: "autoimmune problems" (unspecified if ongoing), notes: she and the patient both have autoimmune problems, She (Mother). There were no concomitant medications. Vaccination history included: HPV vaccine (patient had the HPV vaccine and it was administered in the doctor's office), reaction(s): "Horrible reaction". The following information was reported: FEELING HOT (non-serious) with onset Jun2021, outcome "recovered" (2021), described as "had a baseball sized reaction area and the area was raised and very warm"; RASH (non-serious) with onset Jun2021, outcome "recovered" (2021), described as "he had a pretty gnarly arm rash"; VACCINATION SITE REACTION (non-serious) with onset Jun2021, outcome "unknown", described as "he had site reactions".  Additional Information: The reporter stated that the patient she thinks his COVID-19 vaccination was in June but does not recall the date off the top of her head and it was probably the beginning of June and he did it right at school and had both the 1st and 2nd doses of the vaccine before the school year was over so it was the beginning of June by the 3rd day he had a baseball sized reaction area and the area was raised and very warm and lasted probably 4-5 days and has completely resolved. Stated she had no lot numbers, expiry dates numbers to provide for his COVID-19 vaccination to provide; states the patient had the HPV vaccine and it was administered in the doctor office and she had no lot, expiry date to provide for the HPV vaccine either. The caller stated the patient suffered from autoimmune problems and had pretty severe seasonal allergies and seems to have outgrown it and they only do treatment as needed and he does not continuously need support for the allergies and this was diagnosed prior to the COVID-19 vaccination. Stated her son is age 12 and so she was assuming he had the PFIZER COVID-19 vaccine and he had a pretty gnarly arm rash for a few days and does not know if it was completely related because she had him get the HPV shot and it was a two part shot for the HPV vaccine and with that he had a horrible reaction and she and the patient both have autoimmune problems and with anything foreign it gets super angry. Stated she thinks the patient had the Pfizer COVID-19 vaccination for his age group; states the patient suffers from autoimmune problems and he had site reactions but she does not remember which COVID-19 vaccine her son received but she assumes he had the PFIZER COVID Vaccine but she does not recall.  The lot number for bnt162b2 was not provided and will be requested during follow up.