booster; she has like 2 inches below the injection site is red and swelling; she put her hand on her arm and it was really hot yesterday; she stayed awake last night; she has like 2 inches below the injection site is red and swelling; 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 77-year-old female patient received bnt162b2 (COMIRNATY), administered in arm left, administration date 07Dec2021 12:45 (Lot number: FH8030) at the age of 77 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "allergies" (unspecified if ongoing), notes: she is allergic to some preservatives; "small pox" (unspecified if ongoing), notes: she had small pox and diphtheria with no problems in her childhood.; "diphtheria" (unspecified if ongoing), notes: she had small pox and diphtheria with no problems in her childhood.; "measles" (unspecified if ongoing), notes: she had the measles before all the tests and vaccines.; "Illness" (unspecified if ongoing); "yellow fever" (unspecified if ongoing); "cholera" (unspecified if ongoing). Concomitant medication(s) included: WELLBUTRIN SR, start date: Sep2021. Past drug history included: Flu shot, start date: 1962, reaction(s): "passed out", notes: States that was in 1962. Vaccination history included: Bnt162b2 (Pfizer Covid 19 vaccination dose #1 26Feb2021 in her left arm around 2-3pm. lot EN6202.), administration date: 26Feb2021, when the patient was 76 years old, for COVID-19 immunization; Bnt162b2 (Pfizer Covid 19 vaccination dose #2 18Mar2021 in her left arm around 12-2pm. lot ER8727.), administration date: 18Mar2021, when the patient was 76 years old, for COVID-19 immunization, reaction(s): "little soreness". The following information was reported: IMMUNISATION (non-serious), outcome "unknown", described as "booster"; VACCINATION SITE ERYTHEMA (non-serious) with onset 09Dec2021, outcome "unknown", VACCINATION SITE SWELLING (non-serious) with onset 10Dec2021, outcome "unknown" and all described as "she has like 2 inches below the injection site is red and swelling"; FEELING HOT (non-serious) with onset 10Dec2021, outcome "unknown", described as "she put her hand on her arm and it was really hot yesterday"; INSOMNIA (non-serious) with onset 09Dec2021, outcome "unknown", described as "she stayed awake last night".  Additional Information: The patient had a little soreness from her previous shot but this time she has like 2 inches below the injection site is red and swelling. Patient received the booster shot of Pfizer BioNtech covid vaccine on 07Dec2021 and yesterday about 4-5pm she noticed that 2 fingers (an inch) below injection site was hot to touch. today its only warm but it has been red and swollen. however during the call she noticed its not warm anymore just red and swollen. (Name withheld) has informed her that we cannot provide treatment recommendations. she wants to know if these are reported side effects because she did not experience any side effects with the first shot and after the second shot her side effect was a bit of muscle pain whenever she pulled her arm straight. She stayed awake last night as she wasn't sure what was going on and it was not as hot this morning, it was warm around 5:30am and she went to sleep because it didn't seem as hot. She states with the weekend coming she wanted to get in touch and see what this could be. Her doctor is off on Fridays. She stated that she washed her arm to make sure it was clean and not an irritation and was going to put moisturizer on it but didn't do anything. She states that she had taking Wellbutrin SR 150mg on Sep2021 and that is she wasn't taking this medication when she received the first and second dose of vaccine. She wants to know if its normal because she did not notice them 1-2 days after receiving the vaccine. Events not required Emergency Room or Physician Office visit. Relevant tests were none. Patient states she was allergic to the flu shot, she had one a long time ago and passed out and because of that she went to an allergy doctor to make sure she could take the Covid vaccine and everything was fine. Patient did not have the name of the flu shot, NDC, lot or expiry to provide. States that was in 1962. She was allergic to some preservatives and has spoken to a pharmacist a couple years ago and it is possible that was a contributing factor, it depends if the medication is in a vial and then into a needle but if it's in the needle it has preservatives and could have caused it, she will never know. she had small pox and diphtheria with no problems in her childhood and had the measles before all the tests and vaccines. Prior Vaccinations (within 4 weeks): none. Prior to the vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19.    No follow-up attempts are possible. No further information is expected.