Rash looks like Blotches/ The rash responds to cortisone cream but comes back; he had hives all over entire body/ For the last 4 weeks he has recurring hives in random area on the body/ hives are back like never before; The Itching started in beard and hair then spread all over his body; Inappropriate age at vaccine administration; This spontaneous case was reported by a consumer and describes the occurrence of RASH MACULAR (Rash looks like Blotches/ The rash responds to cortisone cream but comes back), URTICARIA (he had hives all over entire body/ For the last 4 weeks he has recurring hives in random area on the body/ hives are back like never before), PRURITUS (The Itching started in beard and hair then spread all over his body) and PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (Inappropriate age at vaccine administration) in a 15-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 05E21A, 026A21A and 013M20A) for COVID-19 vaccination.     Concurrent medical conditions included Seasonal allergy (Patient does not take medicine regularly for that).   On 16-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 16-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 26-Nov-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 26-Nov-2021,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (Inappropriate age at vaccine administration). On 08-Dec-2021, the patient experienced RASH MACULAR (Rash looks like Blotches/ The rash responds to cortisone cream but comes back), URTICARIA (he had hives all over entire body/ For the last 4 weeks he has recurring hives in random area on the body/ hives are back like never before) and PRURITUS (The Itching started in beard and hair then spread all over his body). The patient was treated with PREDNISONE on 03-Jan-2022 for Adverse event, at an unspecified dose and frequency; PREDNISONE for Hives, at a dose of 3 Prednisone pills and CORTISONE for Rash, at an unspecified dose and frequency. On 26-Nov-2021, PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (Inappropriate age at vaccine administration) had resolved. At the time of the report, RASH MACULAR (Rash looks like Blotches/ The rash responds to cortisone cream but comes back) and URTICARIA (he had hives all over entire body/ For the last 4 weeks he has recurring hives in random area on the body/ hives are back like never before) had not resolved and PRURITUS (The Itching started in beard and hair then spread all over his body) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   No concomitant medications were reported. Patient visited immunologist, last Monday on 03-Jan-2022. The Immunologist gave him a shot of Prednisone which did not work. Patient took 3 Prednisone pills which did not work either. Five days after taking prednisone pills hives are back like never before.The patient has not taken antihistamine but used cortisone cream on his own. The rash responds to cortisone cream but comes.    This case was linked to MOD-2022-440257 (Patient Link).