I developed severe itchy tiny nodular lesions under my skin  in the lower back which then broke out into macular lesions and then thick reddened lesions as I scratch it.; I developed severe itchy tiny nodular lesions under my skin in the lower back which then broke out into macular lesions and then thick reddened lesions as I scratch it.; I had chills and low grade temp. (99.6) relieved with Tylenol.; 3 days after Pfizer vaccine, I had chills and low grade temp. (99.6) relieved with Tylenol.; I developed severe itchy tiny nodular lesions under my skin in the lower back which then broke out into macular lesions and then thick reddened lesions as I scratch it.; The lesions progressed to my neck, upper back, right abdomen, and arms.; Some lesions that have healed over my back and right abdomen left a tiny blackish circular scars.; Some lesions that have healed over my back and right abdomen left a tiny blackish circular scars.; This is a spontaneous report received from a contactable reporter(s) (Other HCP). The reporter is the patient.  A 65 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm left, administration date Mar2021 (Lot number: ER8727) at the age of 65  as dose 1, single for covid-19 immunisation. Relevant medical history included: "Chronic lung effects due to severe COVID-19" (unspecified if ongoing); "covid prior vaccination: yes" (unspecified if ongoing), notes: if covid prior vaccination:Yes. Concomitant medication(s) included: METOPROLOL; ASA; VITAMIN D 3; ZINC; ASCORBIC ACID. The following information was reported: CHILLS (non-serious) with onset 30Mar2021, outcome "recovered" (2021), described as "I had chills and low grade temp. (99.6) relieved with Tylenol."; PYREXIA (non-serious) with onset 30Mar2021, outcome "recovered" (2021), described as "3 days after Pfizer vaccine, I had chills and low grade temp. (99.6) relieved with Tylenol."; PRURITUS (non-serious) with onset 03Apr2021, outcome "not recovered", described as "I developed severe itchy tiny nodular lesions under my skin  in the lower back which then broke out into macular lesions and then thick reddened lesions as I scratch it."; NODULE (non-serious) with onset 03Apr2021, outcome "not recovered", MACULE (non-serious) with onset 2021, outcome "not recovered" and all described as "I developed severe itchy tiny nodular lesions under my skin in the lower back which then broke out into macular lesions and then thick reddened lesions as I scratch it."; SKIN LESION (non-serious) with onset 2021, outcome "not recovered", described as "The lesions progressed to my neck, upper back, right abdomen, and arms."; SCAR (non-serious), SKIN DISCOLOURATION (non-serious) all with onset 2021, outcome "not recovered" and all described as "Some lesions that have healed over my back and right abdomen left a tiny blackish circular scars.". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of chills, pyrexia, pruritus, nodule, macule, skin lesion, scar, skin discolouration.  Additional information: The administration time of vaccine was 14:00. The reporter stated that 3 days after Pfizer vaccine, she had chills and low-grade temp. (99.6) relieved with Tylenol. 7days after the first dose of Pfizer, she developed severe itchy tiny nodular lesions under her skin in the lower back which then broke out into macular lesions and then thick reddened lesions as she scratch it. The lesions progressed to her neck, upper back, right abdomen, and arms. She thought she was allergic to the vitamins she was taking, and she stopped it one by one at 5-7 day intervals to rule out which caused the breakout that still continue to this date. It get momentary relief with hydrocortisone, almond oil, moisturizing lotion and Calamine lotion. Shower relieves me from itching using Aveeno body wash only. Scrubbing the lesions with a washcloth feels calm and not stinging. She stopped using hydrocortisone cream as it started making a blackish discoloration to my skin. It also itches more if she sweat. Some lesions that have healed over her back and right abdomen left a tiny blackish circular scar. The patient took Benadryl 50 mg, HS, Calamine lotion topical as treatment. The patient did not have COVID prior to vaccination and not tested since vaccination. The patient did not have known allergies.  No follow-up attempts are possible. No further information is expected.