itching/itching at the site and on her chest going all the way to her groin; rashes/She does have the rash some already but she expects it to get worse. The rash starts at the armpits and goes down to the groin; itching at the site; soreness on her arm; This is a spontaneous report from a contactable Other HCP. This Other HCP reported for herself that the 56-year-old female patient received first dose of bnt162b2 (BNT162B2, PFIZER-BIONTECH COVID-19 VACCINE, Batch/lot number: EL0140), by injection via an unspecified route of administration on Arm Left on 06Jan2021 12:00 noon at single dose for covid-19 immunisation (front line health care worker). Medical history included Hot flashes, Hashimoto's disease, Osteoporosis and Allergy. Concomitant medications included ongoing estrogens conjugated/medroxyprogesterone acetate (PREMPRO) at 0.45mg; take once daily by mouth for Hot flashes from 2017, ongoing Levothyroxine at 50mcg; take once daily by mouth for Hashimoto's disease from 2014, ongoing alendronate sodium (FOSAMAX) at 70mg; take once weekly by mouth for Osteoporosis from 2017, montelukast sodium (SINGULAIR) at 10mg; take once daily by mouth for allergy from 2018, ongoing Azelastine at one spray per nostril daily for Allergy from 2019, ongoing Fluticasone at 50mg; one spray each nostril daily for Allergy from 2019, ongoing Hydroxyzine at 10mg; once daily by mouth for Allergy from 2019. The patient had the COVID-19 vaccine yesterday (06Jan2021) and today (07Jan2021) 16:00  experienced itching and rashes. She also had soreness on her arm. She is concerned whether this is expected of the COVID-19 vaccine and will it happen again because she has heard that the side effects may worsen on the second dose of the vaccine. What would happen if I don't get the second dose of the vaccine? Itching was reported as worsened. Rash was reported as worsened. Occupational Therapist calling regarding the Pfizer COVID 19 vaccine. States she had the vaccine yesterday and just started itching and can't get up with her primary care provider. Asking if this is a normal side effect? Will it happen again? Reports she received the first dose of the COIVID 19 vaccine 06Jan2021 at 12:00 noon in the left arm. Today 07Jan2021 within the last the hour, 16:00, she started itching at the site and on her chest going all the way to her groin. Adds she has a lot of allergies and that is how it always starts. She knows she will wake up with a red bathing suit rash. She does have the rash some already but she expects it to get worse. The rash starts at the armpits and goes down to the groin. Reporter is Occupational Therapist reporting on herself She is unsure if she will take the second dose of the vaccine. Vaccination Facility Type was nursing home. No vaccine Administered at Military Facility. 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. No AE(s) require a visit to Physician Office or ER.Prior Vaccinations (within 4 weeks) was none. Patient's Medical History (including any illness at time of vaccination) was none. Family Medical History Relevant to AE(s) was none. Relevant Tests was none. The outcome of the events Itching and rash was not recovered. The outcome of the other events was unknown.