She states on 27APR2021 she developed a rash/rash all over body; This is a spontaneous report received from a contactable consumer or other non hcp (patient). A 21-year-old female patient received second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, Batch/Lot Number: ER8729) via an unspecified route of administration, administered in left arm on 22Apr2021 10:30 (at the age of 21-year-old) at dose 2, single for covid-19 immunisation; amoxicillin (AMOXICILLIN), route of administration, start and stop date, batch/lot number and dose were not reported for large lymph node on the back of her ear. Medical history and concomitant medications were not reported. Patient previously received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, Batch/Lot Number: not reported) via an unspecified route of administration, administered in left arm on 01Apr2021 10:30 (at the age of 21-year-old) at dose 1, single for covid-19 immunisation and experienced large lymph node on the back of her ear (From: 18Apr2021 To: Unknown). On 27Apr2021 the patient experienced she states on 27apr2021 she developed a rash/ rash all over body. Question: Reporter is a 21-year-old female who received her first dose of the Pfizer BioNTech COVID-19 vaccine on 1Apr2021 and reports that the 3 weeks later she experienced an enlarged lymph node that her doctor believes was infected, so she was prescribed Amoxicillin. She then states that on 22Apr2021, 3 days after being prescribed the Amoxicillin, she received her second dose of the vaccine. She states on 27Apr2021 she developed a rash and when she went to her doctor, they believed it was due to the Amoxicillin. However, the reporter mother stated that it may be from the vaccine. Reporter would like to verify if a rash is a side effect of the vaccine. Response: Spoke from the attached document and the FULL EMERGENCY USE AUTHORIZATION (EUA) PRESCRIBING INFORMATION PFIZER-BIONTECH COVID-19 VACCINE Prescribing Information  to let caller know that rash has been reported as a non-severe allergic reaction to the vaccine. Referred caller to HCP for further guidance. Additional Context: Consumer reporting on self. She received both doses of the Pfizer Covid-19 Vaccine. 3 weeks after the 1st dose she experienced a large lymph node on the back of her ear. She went to the doctor and was diagnosed with an infection, but the doctor didn't ask if she received the vaccine. She was put on Amoxicillin, and it went away with taking the medication. Reporter does not remember the exact date that the enlarged lymph node went away. Reporter continues to take the Amoxicillin. Reporter had no physician information to provide. Reporter received her second dose on 22Apr2021. She had no reaction until 27Apr2021, 3 days ago. She experienced a rash all over her body. The doctor told her it's a rash caused by the Amoxicillin. She said that she has never been allergic to Amoxicillin in her life but knows that there is a possibility that you can develop a allergy. That doctor also did not ask about her receiving the Covid-19 vaccine. Her mom has never seen a rash like it. Reporter added hives go away with Benadryl, usually. They are weird dots on her body now and don't know if it is from the vaccine. Caller has never had hives before this. Caller asking is Pfizer vaccine a cause of this. Reporter had to get 2 vaccination cards. She left the first card at home when she had her second vaccine. The lady just filled out the information on the second card not including first dose details. Reporter has the first dose information on the first card at home. She received her second dose on 22Apr2021, LOT ER8729, left arm injection. She received both doses at 1030. Reporter went to Pediatrics for treatment. Reporter added she has no medical history relevant to her experience except her taking the Amoxicillin. Adverse event rash led to physician office visit. Outcome of the event was resolving.  No follow-up attempts are needed. No further information is expected.