Rash, one area of two spots on right forearm  slightly erythematous, she also had an area about 3-inch diameter on the right side of chest and one on the left side of foot just below the lateral malleolus.; This is a spontaneous report from a contactable physician. A 73-year-old non-pregnant female patient received the second dose of BNT162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Lot Number: UNKNOWN) via an unspecified route of administration on 10Mar2021 (at the age of 73-years-old) as a single dose for COVID-19 immunisation. The patient medical history included fibromyalgia, degenerative disc disease (DDD), osteoarthritis, migraine, vitamin b12 deficiency, hypertension, hyperlipidemia, hypothyroidism, allergic rhinitis, coronary artery disease (CAD), hyperglycemia, restless legs syndrome (RLS), COPD exacerbation, iron deficiency, arthritis, constipation, allergy and wheezing. Concomitant medications included montelukast sodium (MANUFACTURER UNKNOWN 10 mg tablet), levothyroxine sodium (MANUFACTURER UNKNOWN 75 mcg tablet), LUNESTA (3 mg tablet), escitalopram oxalate (MANUFACTURER UNKNOWN 20 mg tablet), cyclobenzaprine hcl (MANUFACTURER UNKNOWN 10 mg tablet), losartan potassium (MANUFACTURER UNKNOWN 50 mg tablet), ALIGN (4 mg capsule), TURMERIC (3 capsules), magnesium (MANUFACTURER UNKNOWN 300 mg capsule), PROCTOSOL HC 2.5% rectal cream, NITROSTAT 0.4 mg tablet, LIVALO 4 mg tablet, clobetasol propionate (MANUFACTURER UNKNOWN) 0.05% gel, VENTOLIN HFA for wheezing, HYDROXYZINE HCL 50 mg tablet for allergy, gabapentin (MANUFACTURER UNKNOWN 600 mg tablet), ANUSOL-HC 2.5% cream, clonazepam (MANUFACTURER UNKNOWN 1 mg tablet), NORTRIPTYLINE HCL 25 mg capsule, ANUCORT-HC 25 mg rectal suppository, d-mannose (MANUFACTURER UNKNOWN 500 mg capsule), alprazolam (MANUFACTURER UNKNOWN 1 mg tablet), magnesium (MANUFACTURER UNKNOWN 250 mg tablet), docusate sodium (MANUFACTURER UNKNOWN 100 mg tablet), MIRALAX 17 gm/scoop powder, lorazepam (MANUFACTURER UNKNOWN 1 mg tablet), fentanyl (MANUFACTURER UNKNOWN 25 mcg/HR transdermal patch), ROPINIROLE HCL 1 mg tablet, ASPIR-81, CO Q10 60 mg capsule and ZETIA 10 mg tablet; all from unknown dates and unknown if ongoing for unknown indications. The patient previously took amoxicillin (MANUFACTURER UNKNOWN) and experienced nausea on an unknown date. The patient previously took augmentin (MANUFACTURER UNKNOWN) and experienced nausea on an unknown date. The patient previously took codeine sulfate (MANUFACTURER UNKNOWN) and experienced nausea on an unknown date. The patient previously took abilify (MANUFACTURER UNKNOWN) on an unknown date. The patient previously took first dose of BNT162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Lot Number: UNKNOWN) via an unspecified route of administration on 20Feb2021 (at the age of 73-year-old) as a single dose for COVID-19 immunisation. Prior to the vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19. It was unknown if the patient received any other vaccines within four weeks prior to the vaccination. On 10Mar2021, the patient experienced rash, one area of two spots on right forearm slightly erythematous, she also had an area about 3-inch diameter on the right side of chest and one on the left side of foot just below the lateral malleolus. The patient developed some very vague rashes. It got redder as the day gone and then usually in the morning it was completely gone. All these rashes act the same. They were just mildly erythematous. There was no itching. She never had any rashes like that before. She had no new medications. The event resulted in doctor or other healthcare professional office/clinic visit. The clinical outcome of the event rash, one area of two spots on right forearm slightly erythematous, she also had an area about 3-inch diameter on the right side of chest and one on the left side of foot just below the lateral malleolus was not recovered at the time of this report.   No follow-up attempts are needed; information about lot/batch number cannot be obtained.