She picked at a little bump and it started to bleed; little bumps on her chest; sunburn; Chest top of shoulders, back of shoulders turned bright red/ Her chest, shoulder, and upper part of back turned red; She was burnt, but did not have any blisters. She described her skin feeling like she poured peroxide on an open cut.; Nauseous; The inside of her body did not feel right. She felt like something was attacking the inside of her body.; sun allergy reaction; Rash on the top part of the chest; This is a spontaneous report from a contactable consumer (patient) via Medical information team. A 72-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE), dose 1 via an unspecified route of administration on 17Mar2021 15:00 (Lot Number: EN6202) in the arm as SINGLE DOSE for COVID-19 immunization. Medical history was reported as none. The patient's concomitant medications were not reported. The patient previously took advil [ibuprofen], tylenol regular and vitamins. The patient went on a boat ride two weeks later with minimal exposure to the sun and developed chest, top of shoulders, back of shoulders turned bright red. She put after sun lotion on and it didn't go away. She was told by her pharmacist to take bendryl and use cortisone with aloe. She used topical benadryl gel first and it wasn't helpful. She took oral liquid benadryl and was able to sleep. The patient stated, It felt like "I had an open wound and poured peroxide on it- my entire chest." She couldn't stand to have clothes on her chest. She did not develop any blisters. Her doctor recommended she not get the second dose so she missed the second dose. She believes that she had a reaction to the covid vaccine. She received the first dose of the covid vaccine, and the inside of her body did not feel right. She felt like something was attacking the inside of her body. A couple of weeks later, she went on a boat ride with her friends. Her chest, shoulder, and upper part of back turned red. She was burnt, but did not have any blisters. She described her skin feeling like she poured peroxide on an open cut. She tried treating it with aloe vera and a cloth with cold water. Hydrocortisone 1% with aloe vera made it hurt worse. She took liquid Benadryl and it put her to sleep. She has been reading up on side effects and about people calling to report. She thinks that she had a sun allergy reaction. The redness has still has not gone away. She now has little bumps on her chest. She is going to go to the dermatologist. She thinks that she had this reaction from the covid vaccine. She is 72 years old. She has never had anything happen to her like this before. She is out in the sun often. The day that she took the boat ride, she was only out for a little period. It goes from the upper part of her breast to her shoulder. She is not allergic to the sun, so she is not sure why she had a reaction. Because sun allergies are common, but not often reported, she wanted to call and report about her experience. The inside of her body did not feel right. She felt like something was attacking the inside of her body. It began on the same day she received the covid vaccine, 17Mar2021. It is now recovered completely. It lasted for several weeks, at least two weeks. Her chest, shoulder, and upper part of back turned red. She was burnt, but did not have any blisters. She described her skin feeling like she poured peroxide on an open cut: She clarifies that it is like a redness, like a sunburn. It began on 31Mar2021, two weeks after she received the first dose of the covid vaccine. It is a lot better now. But now she has these little bumps, she picked at a little bump and it started to bleed. She is asking about sun allergies. She is asking what can she do about this. She is asking if she can take anything. Hydrocortisone 1% with aloe vera made it hurt worse. She also used After Tan that had aloe vera in it. After Tan is a lotion made by Banana Boat that is sold over the counter. It is raining cats and dogs outside, so she is not able to go and get the bottle. She took liquid Benadryl and it put her to sleep. Benadryl gel made her skin burn. The patient had rash on the top part of the chest in Mar2021. The outcome of the event did not feel right, shoulders turned bright red and skin feeling like she poured peroxide on an open wound and nauseous was recovering. The outcome of the rest of the events was unknown.  No follow-up attempts are needed. No further information is expected.