I can't seem to see much information re what you should do if you feel you might not be able to have the Pfizer vaccine. I'm a bit concerned about one of my sons having it because when he was younger he had some very bad reactions to different foods and had to go an on a strict exclusion diet. These days he avoids certain foods in case he has a reaction and, even then, still regularly needs piriton because he comes out in spots/hives.
I'm thinking he should really be contacting the Drs and seeing what they advise. Has anyone read anything more specific?