Unexpected reaction to canned sardines
I have been eating a tin a day for the past few weeks. Today I took one single bite, and my lips and mouth got itchy. Now I'm getting a rash around my mouth. I get this sometimes with raw apples, but I've never had an issue with sardines. I'm not allergic to any seafood, as far as I know. Could this be a something in this single tin, or a more general issue that is developing?