My friend is a private duty nurse who has a pt in her 60s that is vent dependent. Over the past year the pt's tongue swells to the size of my fist. Its happened different times of the day, and with different nurses there. She doesnt really have any other symptoms other than her tongue swelling, which got so big it was actually starting to crack and bleed. At home they give her Benadryl, Vistaril, and an epi-pen, which didnt help. She goes to the ER and is in the hospital for several days before it starts to go down. She has been tested for allergies, nothing but trace peanuts. but theres nothing in the house that even has peanut oil, the nurses check all the food. the docs and at hospital never come up with an answer, they usually says its Angeioedema and send her on her way. has anyone heard of anything like this?