It looks like somebody burned the bottom of my leg with an iron, Looks like it could be cellulitis, looks like it could be lymphedema, It kind of looks like cellulitis; It looks like somebody burned the bottom of my leg with an iron, Looks like it could be cellulitis, looks like it could be lymphedema, It kind of looks like cellulitis / Looks like I have been burned; It looks like somebody burned the bottom of my leg with an iron, Looks like it could be cellulitis, looks like it could be lymphedema, It kind of looks like cellulitis; Something is going in my leg; Little tender to touch; Developed hot red rash on her leg; Developed hot red rash on her leg / He felt it and it was hot to touch; It's turning from purply to red in color / It was hot red when it started, now it's kind of a purple red; This is a spontaneous report received from a contactable consumer or other non-health care professional (patient) reported for herself. A 64-years-old female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot Number: Unknown), via an unspecified route of administration, administered in Arm Left on Friday 23Jun2021 15:00 (at the age of 64-years-old) as dose 1, single for COVID-19 immunisation. Medical history included asthma, allergy from an unknown date and unknown if ongoing. Concomitant medications included montelukast sodium (SINGULAIR) taken for asthma, hypersensitivity, cetirizine hydrochloride (ZYRTEC [CETIRIZINE HYDROCHLORIDE]) taken for asthma, hypersensitivity, start and stop date were not reported, losartan (LOSARTAN) taken for an unspecified indication, start and stop date were not reported. Patient received vaccine facility at a pharmacy. Patient stated, she had her 1st dose of the Pfizer Covid19 Vaccine last Friday 23Jun2021 at 3pm and at around 6 or 7 PM and she developed hot red rash on her leg. She was advised by her friend doctor to take 50 mg of Benadryl, but the rash was still very present and it's turning from purply to red in colour. Caller was concerned on who was going to pay her bills if her side effects gets worst. Consumer stated, So she just got the first dose of Pfizer vaccine at 3 O'clock on Friday, at 7 O'clock in the evening I developed this hot red, I want to call it a rash but it was not itchy thing, On unknown date it looks like somebody burned the bottom of my leg with an iron. I was absolutely frantic and hysterical, and people were telling me to go to the emergency room but I did not go to the emergency room because I just did not want to incur the cost of the emergency room. So, a doctor friend of my sisters saw the picture that I had sent and said tell her to take some 50 mg of Benadryl, and just because there was an allergic reaction we would be kind of short circuiting the histamine reaction that was going to occur. Although, I take Zyrtec and Singulair every day of my life so I already had antihistamine in me. Okay so this thing with this hot like red burn like thing going on my leg, I tried to relax and get through the have like, there are friends of mine that were looking at this pictures a night because like I said I could not bring myself to go to the emergency room. Nothing else was happening I was not short of breath, I was not experiencing any anaphylaxis or anything like that, this was the only thing that was happening to me. well looks like it could be cellulitis, looks like it could be lymphedema, it just had a lot of looks to it. So in the morning at 8 o'clock, I went to my doctor and he said well you know it kind of looks like cellulitis, I do not know if it came from the vaccine and I am like I have taken a vaccine 4 hours later, I have something going in my leg and the conclusion, that the doctors say it was, whatever it was since we do not know how it arose it was almost like he did not want to say it was happening because of that, okay but, whatever it was we were going to treat it okay, which made that made sense okay so he felt it and it was hot to the touch and everything and he said it looks has cellulitis like, asked me if I was near anything whatever. I guess there is bacteria in the skin all the time there was no reason why you could not develop cellulitis first no reason or if your body was going through an immune response maybe this can happen and by the way I had COVID about 3 months ago. I had a recollection of seeing a rash I can not remember if it was during the time I had COVID, but I have a recollection of it (not clarified further). So that's why this could be a thing like that popping up again, so he said what we all do was we all give you like an antibiotic that will completely cure the skin because if it was cellulitis the first thing we want to do was make sure it does not go any further. So he gave me Keflex (treatment) and by the second pill I would say that the heat came out of the rash, it became as cool to the touch as the rest of my body. However, it was hot red when it started as far as the colour that I am describing to you and I have pictures if that would help you. And now it's kind of a purple red, like it looks like it would like to go away but it's purple red, there's always some edema to my legs, so if I cannot tell if it was creating any more swelling, it was a little tender to touch, it's not itchy, it does not really look rash like. It looks like I has been burned, looks like somebody put an iron on me. So (voice breaking) the side effect, I do not know like was this going to go away. The event cellulitis assessed as serious (medically significant). Patient received treatment as a Benadryl before actually seeing the physician, so at the onset of the event a medical professional not my own doctor, but a medical professional advised a Benadryl would be in order. Actually, he advised 50 mg of Benadryl. I only took 25 and then later that evening I took another 25 because I did not want to have an event where I fell down or something (further clarification unknown). The outcome of the events was reported as unknown.  Information on the lot/ batch number has been requested.