she got a red, hot, itchy rash at different places on her body, mild on scalp, arms, stomach and legs; she got a red, hot, itchy rash at different places on her body, mild on scalp, arms, stomach and legs; she got a red, hot, itchy rash at different places on her body, mild on scalp, arms, stomach and legs; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program (159558). The reporter is the patient.  A 57 year-old female patient received bnt162b2 (BNT162B2), administered in arm right, administration date 27Apr2021 (Lot number: EW0171) at the age of 57 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Hashimoto's Hypothyroidism", start date: 2016 (ongoing), notes: Verbatim: Hashimoto's Hypothyroidism; "food allergies" (unspecified if ongoing); "allergic reaction to a sulfa drug" (unspecified if ongoing), notes: allergic reaction to a sulfa drug; "anaphylaxis" (unspecified if ongoing), notes: in the late 80's; "environmental allergies" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (lot: ER8730, NDC: Unknown , Expiration: Unknown , Route of administration: right upper arm , First dose: Afternoon, maybe 1300 or 1400 is a guess), administration date: 06Apr2021, for Covid-19 immunization. The following information was reported: RASH (non-serious), RASH ERYTHEMATOUS (non-serious), RASH PRURITIC (non-serious) all with onset 28Apr2021, outcome "recovered" (01May2021) and all described as "she got a red, hot, itchy rash at different places on her body, mild on scalp, arms, stomach and legs".  Additional information: Clinical course: It was reported that morning after the second Pfizer BTC vaccine dose, she got a red, hot, itchy rash at different places on her body, mild on scalp, arms, stomach and legs coming and going 3-4 times per day and would last an hour and by the 4th day went away. Her allergist thinks it was an immune response. Patient scheduled for booster dose tomorrow and wants to make sure the ingredients are the same as the Pfizer BTC vaccine first and second doses. The patient was getting ready to receive booster dose Pfizer Covid Vaccine for 12 and older. Having a reaction after receiving the second dose Pfizer Covid Vaccine for 12 and older. On, 28Apr2021, the morning after receiving the second dose vaccine developed a red, hot, itchy rash on different places on body. The rash was mild. The rash was on the caller's scalp, arms, stomach, and legs. The rash was coming and going. The rash happened three to four times per day and the rash would last about an hour and by the fourth day, 01May2021, the rash went away. The patient Allergist believes the rash was an immune response. The patient did not receive additional vaccines on same date of the pfizer suspect and did not have any prior vaccinations within 4 weeks. The patient states she also had not severe, but allergic reactions to other medications. Patient clarifies medication had allergic reaction to as Zantac brand name and the generic name is Ranitidine.   No follow-up attempts are possible. No further information is expected.