She still didn't feel good; something in it really irritated her in this last shot; fever; Caller clarified that her arm is now soft but her muscles are still sore.; Injection her arm was hurting; arm swelled up; redness; itching; Chills/ Swelling; This spontaneous report as received from a 75-year-old female patient via Pfizer regarding herself. The patient's medical history, concurrent conditions and concomitant medications were not reported.  On an unknown date in 2019 (reported as last year) she had her first pneumococcal vaccine, polyvalent (23-valent) (PNEUMOVAX23) vaccine. On 10-FEB-2020 at 10:30AM to 11:00AM (reported as past Monday) the patient had second pneumococcal vaccine, polyvalent (23-valent) (PNEUMOVAX23) (lot#, expiry date was not reported). She never had a reaction to a shot before the one this past Monday. It was reported that about 6 hours later after getting injection her arm was hurting (pain in extremity) which she expected some, but then that arm swelled up and it is just now going down (Peripheral swelling). On the same day (reported as on the first night) she also had redness (injection site erythema) then became yellow, and it itched, she had chills and a fever. After it itched she took Benedryl and Tylenol for a couple of days. she took two tablets of each every 6 hours to treat it for the first two days. She did not keep taking Benedryl after the third day because she did not itch anymore, it took two days to go away. It was reported that her arm got really hard due to swelling so she took the Tylenol and Benedryl which made her sleepy and she started chilling and told her son. She took her heating pad with her for the chills and went to bed and the next day the chills were gone but she still did not feel good (malaise). Her arm was still red and hard at the injection site and the redness and fullness moved all the way down to her elbow. The redness of the arm kept moving. It was reported that currently the redness was not red, it was kind of a dark yellow and looked weird. It was not as red as had been and more like a pale yellow and weird looking. The swelling had gone down and her arm was nice and soft. The patient was monitored every day. She received no other new medications at the time of report. Her arm was now soft but her muscles were still sore to the touch on her right arm where she got the injection (muscle soreness). It was yellow and was a very weird thing and became red was at the time of report it was yellow like bruised in a horrible way. She called the doctor's office about it because it was not normal and they told her that she got the vaccine. It was reported that last year she got the number 13 one and no issues with that one which was why she was willing to take second one. She went to the doctor for blood work and went in to check blood work was really good, everything looked good so she got the shot, She said something in it really irritated her in this last shot (Irritability). It was reported as a year ago she had a shot, and she had taken flu shots in the past, and the pneumonia shot that lasts ten years for work with no issues. She was concerned what was in it that might have done reaction. She would like to know what the shot ingredients were, so she could might figure out with her son and daughter with what she might have had a reaction to. The outcome of pruritus and chills was reported as recovered/resolved. The outcome of pyrexia and irritability was unknown. The outcome of myalgia was reported as not recovered/not resolved.