extreme itch that began on 01Jul2021 & continues to this day/itching is on her scalp down to behind the backs of her knees, a little bit on the ankles, down the arms, & pretty much everywhere; It was at its worst from July to the end of September & including bruising from scratching; It's similar to having poison ivy & is an intense, relentless itch, & when you scratch it, it turns red & bumps are created from the scratching; bumps are created from the scratching; poison ivy; This spontaneous case was reported by a consumer and describes the occurrence of PRURITUS (extreme itch that began on 01Jul2021 & continues to this day/itching is on her scalp down to behind the backs of her knees, a little bit on the ankles, down the arms, & pretty much everywhere), CONTUSION (It was at its worst from July to the end of September & including bruising from scratching), ERYTHEMA (It's similar to having poison ivy & is an intense, relentless itch, & when you scratch it, it turns red & bumps are created from the scratching), MASS (bumps are created from the scratching) and DERMATITIS CONTACT (poison ivy) in a 62-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 019B21A and 010A21A) for COVID-19 vaccination.     No Medical History information was reported.   On 26-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 26-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. In 2021, the patient experienced CONTUSION (It was at its worst from July to the end of September & including bruising from scratching), ERYTHEMA (It's similar to having poison ivy & is an intense, relentless itch, & when you scratch it, it turns red & bumps are created from the scratching), MASS (bumps are created from the scratching) and DERMATITIS CONTACT (poison ivy). On 01-Jul-2021, the patient experienced PRURITUS (extreme itch that began on 01Jul2021 & continues to this day/itching is on her scalp down to behind the backs of her knees, a little bit on the ankles, down the arms, & pretty much everywhere). The patient was treated with PREDNISONE in July 2021 for Adverse event, at an unspecified dose and frequency. At the time of the report, PRURITUS (extreme itch that began on 01Jul2021 & continues to this day/itching is on her scalp down to behind the backs of her knees, a little bit on the ankles, down the arms, & pretty much everywhere) had not resolved and CONTUSION (It was at its worst from July to the end of September & including bruising from scratching), ERYTHEMA (It's similar to having poison ivy & is an intense, relentless itch, & when you scratch it, it turns red & bumps are created from the scratching), MASS (bumps are created from the scratching) and DERMATITIS CONTACT (poison ivy) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Concomitant product use was not provided by the reporter.  Treatment medications include antihistamines including Zyrtec & Benadryl, and a steroid ointment   This case was linked to MOD-2021-435307 (Patient Link).