It caused an infection of the seroma that she has been putting up with for 2 years from breast cancer surgery and her doctor has been sucking it off. first time they got 60cc and the 2nd time 30cc; She has a lump with a hole in it under her arm; This is a spontaneous report from a contactable consumer. This 69-year-old female consumer(patient) reported that she received  the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Batch/lot number: EW0158) at single dose for COVID-19 immunisation on 04Apr2021. Medical History included she was healthy as a horse except the little bout of stage 1 breast cancer 3 years ago. History of all previous immunization with the Pfizer vaccine considered as suspect was none. Additional Vaccines Administered on Same Date of the Pfizer Suspect was None. Prior Vaccinations (within 4 weeks) was None. AE(s) following prior vaccinations: None. Caller stated if she was being terribly honest, when you step on a nail and you get the shot when you step on something rusty her arm will be sore, it's every 7 years. Caller did not recall the name of the shot and did not have NDC, lot or expiry to provide. Caller stated it was probably 5 years ago and was always sore after that shot.  Relevant concomitant drugs included Anastrozole (she was a 3 years survivor), calcium plus D, jelly thing for eye health, acetylsalicylic acid (BABY ASPIRIN). At night she takes something to make her sleep better, it's like paracetamol (TYLENOL), it's not a sleeping pill and just takes 1. The patient stated it (BNT162B2) caused an infection of the seroma that she has been putting up with for 2 years from breast cancer surgery and her doctor has been draining it off in Apr2021. The first time they got 60cc and the 2nd time they got 30cc. The patient got the shot and 2-3 days later that puppy got infected and she had pictures of it.  She was put on antibiotics (not name, dose, NDC, lot or expiry provided), 4 times a day for 10 days, that's 40 total and it didn't touch it. The patient stated it was lanced and packed for about 2 months and it was not healed. She had a bulging thing under her arm with a hole in it and she didn't have a problem before this until after the 1st shot.  The 2nd dose was scheduled for 04May2021 and the patient sure wasn't getting it. She had a friend that was a nurse and she looked at it and said oh my God you need to have this seen. She had been walking around with an open hold under her arm for 2 months for sure. Caller stated it was covered most of the time and now it was not, to air it out or something.  Caller stated it's a little bag of fluid. The patient stated they sent it away every time they drained fluid off it was sent off. They told her nothing to be concerned about, it was fluid her body wanted to generate. These were about 6 months apart as she doesn't go unless they want to see her about 6 months apart.  Her doctor said they could see her next Tuesday and she said yeah that's not going to work because if she gets an infection or if there was one that can be a problem. Caller stated she wouldn't be as upset but she had a lump with a hole in it under her arm and if she wears a sleeveless top it's a lump lump hole and it's not very attractive from this. She is currently wearing a dress on to cover it and it's not showing. The outcome of events was unknown.  No Emergency room visited, but physician office visited due to the events.