right arm is swelling; awful allergic reaction; My shoulder does not look normal. Somebody said it looks like scabies; red and blotchy; blotchy; itchy; huge whelp below the injection site; I still see an indent; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 02Nov2022 as dose number unknown (booster), single (Batch/Lot number: unknown), in right arm for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 1, SINGLE), for COVID-19 Immunization; Moderna covid-19 vaccine (DOSE 2, SINGLE), for COVID-19 Immunization, reaction(s): "Interchange of vaccine products", "Off label use"; Moderna covid-19 vaccine (DOSE 3 (BOOSTER), SINGLE), for COVID-19 Immunization. The following information was reported: SKIN INDENTATION (non-serious) with onset 04Nov2022, outcome "unknown", described as "I still see an indent"; ACARODERMATITIS (non-serious) with onset 04Nov2022, outcome "unknown", described as "My shoulder does not look normal. Somebody said it looks like scabies"; DRUG HYPERSENSITIVITY (non-serious) with onset 04Nov2022, outcome "unknown", described as "awful allergic reaction"; RASH MACULAR (non-serious) with onset 04Nov2022, outcome "unknown", described as "blotchy"; VACCINATION SITE REACTION (non-serious) with onset 04Nov2022, outcome "unknown", described as "huge whelp below the injection site"; PRURITUS (non-serious) with onset 04Nov2022, outcome "unknown", described as "itchy"; ERYTHEMA (non-serious) with onset 04Nov2022, outcome "unknown", described as "red and blotchy"; PERIPHERAL SWELLING (non-serious), outcome "unknown", described as "right arm is swelling". Therapeutic measures were taken as a result of drug hypersensitivity, acarodermatitis, erythema, rash macular, pruritus, vaccination site reaction, skin indentation.  Additional information: Reported that, the reporter (patient) refused to provide her first and last name however she have her phone number here. So this was regarding the Bivalent vaccine, she had a horrible allergic reaction to it. Her right arm had swelling, it was red and she would like to send some pictures of it to Pfizer. Patient got the bivalent booster last Wednesday on 02Nov2022. She believe she had an awful allergic reaction, noticed it Friday on 04Nov2022. Her shoulder does not look normal. Somebody said it looks like scabies. It's all red and blotchy. She had a huge whelp below the injection site. Patient have been applying topical steroids. It's still bright red, round circle. It's itchy from the very beginning and warm. It looks a little bit better. It's fading and pinker. There was a big indent in her arm. she was really frightened. The reaction was all over her shoulder and below her shoulder. Half way between the collar bone and the elbow, she still see an indent. Patient switched from Pfizer to Moderna. she had a reaction to the 2nd Moderna shot and the 1st Moderna booster. This one looked worse and started sooner. The Moderna one lasted a month. Patient would like to know if this is a known reaction, if other people have had it, if it's going to be permanent and what to do about it. Asks if this a normal side effect or not because she was kind of anxious after looking at her shoulder and took a lot of pictures of it. Patient have never seen anything like before. Patient just wanted help and do not want to document and was expecting a call from her doctor, hung-up abruptly. Reporter was unwilling to complete the report.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.