itch at injection site, became red, raised and swollen; pain; pinkish/red coloring around the injection site area; There's like a big lump; kind of light headed/dizzy; Felt kind of scared/Feels funny; itching/Right arm started to itch/itch at injection site; it started to swell and was red all around the injection site; This is a spontaneous report from a contactable consumer. A 75-year-old female consumer received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for Injection, Lot number: EP7534, Expiration date: Not provided), via an intramuscular route in the left arm on 16Mar2021 (Tuesday) at 13:00 (age at vaccination: 75-year-old), as a single dose for covid-19 immunization. Medical history included allergic to Wellbutrin and toxoplasmosis. The patient concomitant medications were not reported. Patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. On 24Mar2021, yesterday around 18:00, patient was sitting on the couch experienced right arm started to itch/ itch at injection site. She had been outside and picked up a pot and she thought maybe she got bit by a fire ant or something, it wasn't where the needle went in it was to the right of the injection site. Patient thought she just kind of kept itching and didn't think too much about it. Then she was looking at it again and it started to swell and was red all around the injection site. On 25Mar2021, there's like a big lump. It was swollen yesterday evening too and red and patient put some Benadryl gel on it. States that didn't really help and it was itching and was dizzy. She has this chigger 2x the power for chigger tic and all bug bites, with 10% benzocaine in it, it says fast soothing relief with aloe Vera, states it is for chigger bites. Patient reports that really helped. This morning it was still itching again after she took her shower. She looked and the whole area on her left arm around the injection site was pink and swollen like she got a small size potato on her arm up there from the swelling. The swelling feels like its kind of hard, felt kind of scared. She put some more of the chigger product on it to stop the itch, chigger X power, 10X power. Now she has taken a Benadryl at 08:45 this morning, one capsule, says she just felt kind of lightheaded. On 27Mar2021 also patient left started to itch at injection site, became red, raised and swollen. Her primary care doctor recommended to take Tylenol for pain. Next morning, on 28Mar2021, she took one Benadryl, left arm injection site still, pink swollen and itched. Ice did not help but warm water helped at injection site was also dizzy, lighted headed on 28Mar2021. Her husband is highly allergic to fire ant bites, she always keeps Benadryl. She thought maybe that's what it was when she picked up the flowerpot. Maybe it was something. Patient says she doesn't know, she has never had anything like this happen before. She didn't think it was the fire ant. Patient wanted to know if this is going to lead to why she might be having a reaction 7 days later or is this part of the helping with research? She wants to know if she needs to have my husband take her to the hospital or was she going to be okay. States she feels funny. Patient received the second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for Injection, Lot number: EM6207), via an intramuscular route in the right arm on 06Apr2021 at 09:30, as a single dose for covid-19 immunization. The clinical outcome of the events was finally subsided about 4 days out 31Mar2021.  Follow-up attempts are completed. No further information is expected.