Allergic reaction, please help?

No idea but you could always get allergy tested. This can be done by skin pricks, patches, or blood tests. None of them guarentee your allergy will show up but it is certainly worth a shot if you're having this much trouble. None of the tests are too very painful. Oh and as far as I know, patch testing is just for food allergies. Goodluck! I hope you feel better soon