Covid arm/Redness area raised and enlarged through August 10, 2021, and eventually included neck and back; Redness at site of injection on left arm appeared; Itching at site of injection on left arm; Red blotchy patches lower down on chest appeared; Rash on her neck, back, chest and part of her arms; Hypersensitivity reaction; Redness on her neck, back, chest and part of her arms; Shortness of breath; Itching on neck and chest; Red/itchy eyes; Hives/urticaria local; Chest tightness; Red/itchy eyes; This spontaneous case was reported by a consumer and describes the occurrence of ERYTHEMA (Redness on her neck, back, chest and part of her arms), DYSPNOEA (Shortness of breath), PRURITUS (Itching on neck and chest), OCULAR HYPERAEMIA (Red/itchy eyes) and URTICARIA (Hives/urticaria local) in a 66-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 041B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Previously administered products included for Product used for unknown indication: Flu. Past adverse reactions to the above products included Hives with Flu. Concurrent medical conditions included Asthma since 01-Jan-1958, Diabetes since 06-Jan-2019, Blood pressure, Osteoporosis, Anaphylaxis, Hypersensitivity reaction, Hay fever, Hives, Food allergy (Reaction included hives, diverticulitis), Food allergy (Reaction included hives, diverticulitis), Food allergy (Reaction included hives, diverticulitis), Food allergy (Reaction included hives, diverticulitis), Allergic reaction to bee sting (Reaction included hives, asthma), Pollen allergy (Reaction included asthma, sinusitis), Shellfish allergy (Reaction included asthma, hives) and Iodine allergy (Reaction included asthma, hives). Concomitant products included LISINOPRIL for Blood pressure, CALCIUM, COLECALCIFEROL (CALCIUM & VITAMIN D [CALCIUM;COLECALCIFEROL]) for Osteoporosis, FISH OIL (OMEGA 3 [FISH OIL]), GARLIC [ALLIUM SATIVUM] and BIOTIN for an unknown indication.    On 28-Jul-2021 at 2:00 PM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 28-Jul-2021 at 2:30 PM, the patient experienced ERYTHEMA (Redness on her neck, back, chest and part of her arms), DYSPNOEA (Shortness of breath), PRURITUS (Itching on neck and chest), OCULAR HYPERAEMIA (Red/itchy eyes), URTICARIA (Hives/urticaria local), CHEST DISCOMFORT (Chest tightness), EYE PRURITUS (Red/itchy eyes), RASH (Rash on her neck, back, chest and part of her arms) and HYPERSENSITIVITY (Hypersensitivity reaction). On 28-Jul-2021 at 8:30 PM, the patient experienced RASH MACULAR (Red blotchy patches lower down on chest appeared). On 05-Aug-2021, the patient experienced VACCINATION SITE ERYTHEMA (Redness at site of injection on left arm appeared) and VACCINATION SITE PRURITUS (Itching at site of injection on left arm). On 10-Aug-2021, the patient experienced VACCINATION SITE REACTION (Covid arm/Redness area raised and enlarged through August 10, 2021, and eventually included neck and back). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) (oral) on 28-Jul-2021 for Adverse event, at an unspecified dose and frequency and PREDNISONE for Adverse event, at an unspecified dose and frequency. On 28-Jul-2021 at 8:30 PM, HYPERSENSITIVITY (Hypersensitivity reaction) had resolved. On 29-Jul-2021, PRURITUS (Itching on neck and chest), OCULAR HYPERAEMIA (Red/itchy eyes), URTICARIA (Hives/urticaria local), CHEST DISCOMFORT (Chest tightness), EYE PRURITUS (Red/itchy eyes) and RASH (Rash on her neck, back, chest and part of her arms) had resolved. At the time of the report, ERYTHEMA (Redness on her neck, back, chest and part of her arms) and VACCINATION SITE REACTION (Covid arm/Redness area raised and enlarged through August 10, 2021, and eventually included neck and back) had not resolved and DYSPNOEA (Shortness of breath), RASH MACULAR (Red blotchy patches lower down on chest appeared), VACCINATION SITE ERYTHEMA (Redness at site of injection on left arm appeared) and VACCINATION SITE PRURITUS (Itching at site of injection on left arm) outcome was unknown.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter considered ERYTHEMA (Redness on her neck, back, chest and part of her arms), DYSPNOEA (Shortness of breath), PRURITUS (Itching on neck and chest), OCULAR HYPERAEMIA (Red/itchy eyes), URTICARIA (Hives/urticaria local), CHEST DISCOMFORT (Chest tightness), EYE PRURITUS (Red/itchy eyes), VACCINATION SITE REACTION (Covid arm/Redness area raised and enlarged through August 10, 2021, and eventually included neck and back), RASH MACULAR (Red blotchy patches lower down on chest appeared), RASH (Rash on her neck, back, chest and part of her arms), VACCINATION SITE ERYTHEMA (Redness at site of injection on left arm appeared), VACCINATION SITE PRURITUS (Itching at site of injection on left arm) and HYPERSENSITIVITY (Hypersensitivity reaction) to be possibly related.    Other concomitant medication include Symbicort inhalers. The vaccination facility gave breathing treatment.  Treatment information include patient took Benadryl and steroids orally for redness and itching on neck and chest and the reaction got controlled by 03:45 pm. At approximately 8:30 pm, redness of neck and chest and red blotchy patches lower down on chest appeared.  Took liquid Benadryl and reaction controlled.   Patient reported to have recovered with residual effect such as covid arm on 10-AUG-2021.  Additional information reported include that the redness did not resolve until later in August.   Most recent FOLLOW-UP information incorporated above includes: On 18-Oct-2021: Additional informations include Physician details, Patient demographics, Medical history, Concomitant drugs, treatment medications and new events.