Cellulitis; Chills; scaling; his leg started leaking; redness; sweating; had a crack in his skin; This is a spontaneous report from a contactable consumer (patient) from a Pfizer-sponsored program. A 56-year-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 1 intramuscular administered in arm left on 17Apr2021 (Lot Number: ER8737) at the age of 55-year-old as single dose for covid-19 immunisation.  He was allergic to milk. He said it gave him sniffles and stuffs his nose but he drinks it anyways. The patient's concomitant medications were not reported.  His 2nd shot of the Pfizer COVID Vaccine tomorrow and was asking if the vaccine would just be as effective if he delays the shot a week or 2 later because he was getting treatment for cellulitis on 26Apr2021 and he knew that the side effects of the vaccine and treatment are similar and he does not want to get "double whammed". He has heard that the vaccine would still be effective if delayed for up to 60 days and would like to confirm that. He confirmed that he had cellulitis and chills but said none of that was from the shot. He said that if he got the second shot he was worried about them double teaming his immune system. He said he had athletes foot and had a crack in his skin in Apr2021, and it got into him that way. He said the chills were from the cellulitis. The caller said that the events started shortly after his shot, oddly enough. He said he went to the hospital. He said he was at work. He said he went to the doctor on 29Apr2021 for the chills a week or two before that. He said on 26Apr2021 his leg started leaking. He said he was on antibiotics and it was going down but he still had redness and scaling that he wasn't able to get rid of. He said he got them at the same time, the leaking, the chills started that night. He said he noticed the cellulitis in the morning and he let it go for a couple of days. He went to the doctor on Thursday. He should have gone earlier. He said no more winter coat in the sun. He said his wife and his roommate were sweating and he had a sweater on; he had it bad. He said he didn't remember the days but he was tested for a blood clot which was negative and they checked out his heart. He did not provide the result of them checking out his heart. He says any doctor who knows about cellulitis knows to check these things. He also says they checked his blood pressure and other things: see formal field. He said after the emergency room they sent him home and told him to follow up with his primary care provider and a podiatrist, which he has done. He says he saw his primary care provider the following Monday 03MAY2021 and the podiatrist he didn't see until Wednesday 05MAY2021. He says he was supposed to see both of them within 2 days but he couldn't get in. Those events resulted emergency room and physician office. The patient was not hospitalized. He said his family had skin problems like eczema and such but he said it not relevant. The patient underwent lab tests and procedures on 29Apr2021 which included blood pressure: 110/63, temperature: 97.2, pulse: 84, oxygen saturation: 99%, respiration: 16. Outcome of event cellulitis, chills, his leg started leaking, redness was recovering; of sweating was recovered in 2021, of other events was unknown.