14 yr son - sudden swelling of lower eyelids. seemed to respond to benedryl. no history allergy. gone now. should i worry about anaphylaxis in future?

Sound localized.: If your child did not have more generalized symptoms including wheezing, swollen or itchy tongue, cough or vomiting, then his swollen eyelids may have been more of an environmental or external exposure, which rarely causes anaphylaxis. If you can relate this to something he ate or likely to ingest in the future, it is possible. Over 50% of hives and angioneurotic edema are not allergic as cause