2 inch round red area at the vaccination site; sore arm; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 66 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 17Mar2021 13:00 (Lot number: EN6204) as dose 1, single and administered in arm left, administration date 09Apr2021 10:30 (Lot number: EW0150) as dose 2, single for covid-19 immunisation. Relevant medical history included: "Stomach thing,for reflux" (unspecified if ongoing); "blood thinner" (unspecified if ongoing). Concomitant medication(s) included: WARFARIN taken for anticoagulant therapy, start date: 2012 (ongoing); NEXIUM [ESOMEPRAZOLE MAGNESIUM] taken for gastrooesophageal reflux disease, start date: 2012 (ongoing); MULTIVITAMIN [VITAMINS NOS] (ongoing); VITAMIN D NOS (ongoing). The following information was reported: VACCINATION SITE ERYTHEMA (non-serious) with onset 30Mar2021, outcome "recovered" (2021), described as "2 inch round red area at the vaccination site"; PAIN IN EXTREMITY (non-serious) with onset 17Mar2021, outcome "recovered" (19Mar2021), described as "sore arm".  Additional Information: The patient reported that she got her second Pfizer Vaccine today, but when she was there, she told the nurse or practitioner there that around the 13th day after the first shot, she noticed that she had a 2 inch round red area at the vaccination site, that only lasted a couple days, and that she first noticed it the 13th day. She also reported that it wasn't hives, it was just red. It was reported when she told them this today, they couldn't advise if she should take the second or not and should call her doctor to make sure it's okay. It was suggested that when she took the shot, when she got home, she should take some Benadryl. Her doctor told the patient to go ahead and get it because she had to and advised her to take Claritin for a few days. The patient wanted to know whether that affect her or the Pfizer vaccine if she took that. She had heard that she shouldn't take Tylenol because it might affect the Pfizer vaccine and she just wanted to check on taking Claritin. The patient was the patient taking Pfizer Covid Vaccine to prevent from dying, she didn't want to end up on a ventilator. The patient had 2 inch round red area, she could have had it longer, she just didn't look. It could happen again because she got the new one today, but the red area, that one recovered. She reported that happened to be standing in front of a mirror and saw it; it wasn't dark, dark red, it was pink. It went away might be another day or two; might be it went away 31Mar2021 or 01Apr2021. She would mention she was on a blood thinner; she did not know if that has anything to do with it. It wasn't black and blue, her skin was like pink/red. She also had a sore arm, maybe the first day and a half. It was painful to lift the arm, but she knows that's expected. Caller states that started a few hours later after the shot into the night-time and the next day. It might be it lasted into the 2nd day after. The worst of it was just a day and a half to two days. It just felt a little bit bothered, but it was going away, she can't say for sure. Caller states every once in a while, she gets a little pain for a second, but that had happened before the Pfizer, so she doesn't know if it's that.  No follow-up attempts are possible. No further information is expected.