Glass ionomer is ok when you are allergic to the plastics, I have several.

hard to find a dentist who uses the stuff anymore though. so i have been pulling my amalgam filled molars slowly one by one instedad... yick but they are messed up anyway. I am 48 years old I got many years good use out of them c'est la vie.

feel sorry for ya. You better find a dentist to get that stuff out asap. been there myself, it's not fun.

take some OTC anti-histamines asap, not the best for you but it will calm the allergies down a bit till you can get the plastics out of there.

apples and mushrooms are good to eat to help settle the allergies down too, but defintely get some anti-histamines. I normally would not tell anyone to take OTC meds but I don't what else to tell you in that regard due to the hives etc, you better get some help quick.