caller states that after receiving the 2nd dose of the Moderna COVID-19 vaccine, she had developed a skin condition called Pityriasis Rosea; She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them; She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them; This spontaneous case was reported by a pharmacist and describes the occurrence of PITYRIASIS ROSEA (caller states that after receiving the 2nd dose of the Moderna COVID-19 vaccine, she had developed a skin condition called Pityriasis Rosea), PAIN IN EXTREMITY (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) and PYREXIA (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) in a 54-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 013M20A) for COVID-19 prophylaxis.     Patient had no allergies. Patient was not diagnosed with covid-19.    On 29-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 25-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient experienced PITYRIASIS ROSEA (caller states that after receiving the 2nd dose of the Moderna COVID-19 vaccine, she had developed a skin condition called Pityriasis Rosea), PAIN IN EXTREMITY (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) and PYREXIA (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them). At the time of the report, PITYRIASIS ROSEA (caller states that after receiving the 2nd dose of the Moderna COVID-19 vaccine, she had developed a skin condition called Pityriasis Rosea), PAIN IN EXTREMITY (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) and PYREXIA (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) outcome was unknown. Not Provided      For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter considered PITYRIASIS ROSEA (caller states that after receiving the 2nd dose of the Moderna COVID-19 vaccine, she had developed a skin condition called Pityriasis Rosea), PAIN IN EXTREMITY (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) and PYREXIA (She says that she probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them) to be related.    Concomitant product use was not provided by the reporter.  It was reported that after receiving the 2nd dose of the Moderna COVID-19 vaccine, she had developed a skin condition called Pityriasis Rosea. Her primary care physician could not explain why she was experiencing this condition as there were no peer reviewed articles at the time linking this to the COVID-19 vaccine. When she finally got a dermatology appointment, she was told that this is potentially a side effect of the Moderna COVID-19 vaccine she had received. Her dermatologist did mention to her that they had seen this condition in some of their patients after having received the Moderna COVID-19 vaccine. She says that she did find an article in Apr-2021, after receiving the 2nd dose in Feb-2021, that stated the Moderna COVID-19 vaccine can cause Pityriasis Rosea. She probably had the common side effects of sore arm and fever with her shots as well but she never reported those as these are very common and everyone experiences them. She states that she has not had any side effects with any of the other doses she received.  Treatment information was not provided.   This case was linked to US-MODERNATX, INC.-MOD-2023-749478 (E2B Linked Report).; Sender's Comments:  US-MODERNATX, INC.-MOD-2023-749478:same patient ( different vaccine)