Chest pain; Pt has gone Vegan; Throat and eyes were swollen; Throat and eyes were swollen; Progressing an it has not gone away since; As soon as steroid ran out, patient felt crazy with hives; Hives ramped up; Delayed hives; COVID arm; Hives and swelling all over body and got worst everyday, never subsided; swelling mostly at eyes, mouth, tongue areas; Swelling mostly at eyes, mouth, tongue areas; Swelling mostly at eyes, mouth, tongue areas; Got worst and it was never subsided; This spontaneous case was reported by a consumer and describes the occurrence of URTICARIA (Delayed hives), VACCINATION SITE URTICARIA (COVID arm), SWELLING (Hives and swelling all over body and got worst everyday, never subsided), EYE SWELLING (swelling mostly at eyes, mouth, tongue areas) and CIRCUMORAL SWELLING (Swelling mostly at eyes, mouth, tongue areas) in a 37-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 029A21A and 027B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 05-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 03-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 13-Mar-2021, the patient experienced URTICARIA (Delayed hives), VACCINATION SITE URTICARIA (COVID arm), SWELLING (Hives and swelling all over body and got worst everyday, never subsided), EYE SWELLING (swelling mostly at eyes, mouth, tongue areas), CIRCUMORAL SWELLING (Swelling mostly at eyes, mouth, tongue areas), SWOLLEN TONGUE (Swelling mostly at eyes, mouth, tongue areas) and CONDITION AGGRAVATED (Got worst and it was never subsided). On 08-Apr-2021, the patient experienced URTICARIA (Hives ramped up). On 14-May-2021, the patient experienced PHARYNGEAL SWELLING (Throat and eyes were swollen), EYE SWELLING (Throat and eyes were swollen), CONDITION AGGRAVATED (Progressing an it has not gone away since), CONDITION AGGRAVATED (As soon as steroid ran out, patient felt crazy with hives) and VEGAN (Pt has gone Vegan). On 31-May-2021, the patient experienced CHEST PAIN (Chest pain). The patient was treated with STEROIDS (parenteral) on 25-Mar-2021 for Hives, at a dose of UNK dosage form; METHYLPREDNISOLONE on 25-Mar-2021 at a dose of 4 mg; CETIRIZINE HYDROCHLORIDE (ZYRTEC [CETIRIZINE HYDROCHLORIDE]) (oral) on 25-Mar-2021 at a dose of 10 mg and DIPHENHYDRAMINE HYDROCHLORIDE, PARACETAMOL, PSEUDOEPHEDRINE HYDROCHLORIDE (BENADRYL TOTAL) (oral) at a dose of 25 mg. At the time of the report, URTICARIA (Delayed hives), VACCINATION SITE URTICARIA (COVID arm), SWELLING (Hives and swelling all over body and got worst everyday, never subsided), EYE SWELLING (swelling mostly at eyes, mouth, tongue areas), CIRCUMORAL SWELLING (Swelling mostly at eyes, mouth, tongue areas), SWOLLEN TONGUE (Swelling mostly at eyes, mouth, tongue areas), CONDITION AGGRAVATED (Got worst and it was never subsided), URTICARIA (Hives ramped up), PHARYNGEAL SWELLING (Throat and eyes were swollen), EYE SWELLING (Throat and eyes were swollen), CONDITION AGGRAVATED (Progressing an it has not gone away since), CONDITION AGGRAVATED (As soon as steroid ran out, patient felt crazy with hives), CHEST PAIN (Chest pain) and VEGAN (Pt has gone Vegan) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Concomitant medications were not provided.