I was eating a pasta salad on Saturday and I got an Allergic reaction. I broke out in an itchy rash on my arm and spread to my neck and chest. I then had heart palpitations. I took Benadryl and then everything stopped. On Sunday, I tried it again thinking I may have gotten the rash from somewhere else, and I still broke out in an itchy rash that spread after eating the pasta salad. I took the Benadryl again and it stopped. But Sunday night, I noticed my neck swelled a little and it is still a little swollen today (Monday). I am also noticing that whenever I drink or eat anything, it is a little hard to swallow. Should I take the Benadryl again? Can a food allergy last this long and cause swelling of my neck and cause more itching in the morning on Monday? Cause I stopped taking Benadryl Sunday after I stopped itching. Do you think getting an Allergic reaction again the second time increased the symptoms?
Any advice would be greatly appreciated. Thank you.