Has COVID Arm again; Left arm is warm; Stated her left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.; Left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.; Left arm is red,red patch,red patch spreading/occurring at injection site and left arm; left arm is slowly growing/Left arm is red,red patch,red patch spreading/occurring at injection site and left arm; Felt achy/achiness; Felt like she had the flu; Fever; This spontaneous case was reported by a consumer and describes the occurrence of PAIN (Felt achy/achiness), INFLUENZA LIKE ILLNESS (Felt like she had the flu), VACCINATION SITE REACTION (Has COVID Arm again), VACCINATION SITE WARMTH (Left arm is warm) and PERIPHERAL SWELLING (Stated her left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.) in a 53-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 029H21B, 013A21A and 043L20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Drug allergy (Allergic to Compazine).   On 22-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 25-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 13-Dec-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 13-Dec-2021, the patient experienced PYREXIA (Fever). On 14-Dec-2021, the patient experienced PAIN (Felt achy/achiness) and INFLUENZA LIKE ILLNESS (Felt like she had the flu). On 16-Dec-2021, the patient experienced VACCINATION SITE REACTION (Has COVID Arm again), VACCINATION SITE WARMTH (Left arm is warm), PERIPHERAL SWELLING (Stated her left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.), ERYTHEMA (Left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.), VACCINATION SITE ERYTHEMA (Left arm is red,red patch,red patch spreading/occurring at injection site and left arm) and VACCINATION SITE SWELLING (left arm is slowly growing/Left arm is red,red patch,red patch spreading/occurring at injection site and left arm). On 15-Dec-2021, PAIN (Felt achy/achiness) and INFLUENZA LIKE ILLNESS (Felt like she had the flu) had resolved, PYREXIA (Fever) had resolved. At the time of the report, VACCINATION SITE REACTION (Has COVID Arm again), VACCINATION SITE WARMTH (Left arm is warm), PERIPHERAL SWELLING (Stated her left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.), ERYTHEMA (Left arm is warm,red and "slowly growing". She stated it is occurring at two spots including the injection site and down on her left arm.), VACCINATION SITE ERYTHEMA (Left arm is red,red patch,red patch spreading/occurring at injection site and left arm) and VACCINATION SITE SWELLING (left arm is slowly growing/Left arm is red,red patch,red patch spreading/occurring at injection site and left arm) outcome was unknown.            No concomitant medications were reported  Patient reported that she will take ibuprofen.  The patient stated that she wonders if she has lingering side effects or suggested maybe it's only a mental thought. She has no known food allergies she does not take any daily medications to treat any health conditions.   This case was linked to MOD-2021-021313 (Patient Link).