extremely dry lips and dry mouth; my teeth were sticking inside of my upper lips; extremely dry lips and dry mouth; my teeth were sticking inside of my upper lips; Swelling of my mouth; infection in gum; symptomatic of an allergic reaction; This is a spontaneous report from a contactable consumer (patient). A 66-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Lot Number: EN6205), via an unspecified route of administration on 06Mar2021 (at the age of 66-years-old) as dose 2, single for COVID-19 immunization. The patient medical history was not reported. Concomitant medication included just supplements. Historical vaccine included BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Lot Number: EL9266), via an unspecified route of administration on 02Feb2021 (at the age of 66-years-old) as dose 1, single for COVID-19 immunization. The patient experienced extremely dry lips and dry mouth; my teeth were sticking inside of my upper lips, swelling of my mouth, infection in gum and symptomatic of an allergic reaction on an unspecified date in Mar2021. Patient stated that it was quite unusual side effect, she thinks it was unusual. Although she saw on internet that there was a story, woman that having the same thing and what she has been experiencing is the delayed reaction. Patient had her second vaccination three weeks ago, may be about, less than a week afterwards, she started to have extremely dry lips and dry mouth. Not like a dry fruit but dry in a front of her mouth, in fact her teeth were sticking inside of her upper lips. Patient thought she kept riding it off to, she had to put humidifier away for the winters and may be the air was drier or something it was just so she started putting Vaseline, all these different topical things on lips and it just wasn't get any better. And then patient started having swelling of mouth and it was so odd and then finally this last weekend yesterday or day before, it seemed like a stretch, but she wonders if it was from the shot, because there wasn't anything different with her food or anything like that, she could pinpoint it. But yes, it was symptomatic of an allergic reaction, it was something.  Patient got on the internet this morning and she found an article about a woman who had the same exact story that she had, and she had this vaccine and her occurred after three weeks after her second shot. All the symptoms she had was experienced by patient and it wasn't getting any better, it got progressively worse. So, she went to the doctor this morning and told her whole story and doctor read the article and she was glad to have the information and then when patient went to the pharmacy, because she put her on steroid pill, steroid ointment for lips, and because of the dry mouth that patient had so severely have infection in gum. Patient had gingivitis real bad because of the dry mouth so she was on antibiotic as well as steroid and so when went to the pharmacist, she told them the reason why she was getting this prescription because of what she think was the shot and so she showed her lips. Patient was on just supplements, well right now she was on prescription drug because of this but she was not on any prescription drug. Treatment included steroid ointment, steroid pills, and antibiotic. Outcome of events was not resolved.  No follow-up attempts are possible. No further information is expected.