Hi, I have a friend whom I will refer to as Fiona. About a year ago, a doctor gave her this medicine called Erytab. It caused her to have various allergic reactions to it, such as itchiness of the skin on various parts of her body, allergy to certain foods such as eggs, some vegetables, etc. This happens even up till now, long after she has stopped taking Erytab. She has sought help from many doctors, but all of them somehow or the other shook their heads and seem to suggest that it is incurable. Is it really incurable? What I would like to understand is why does the above happen and why is it that the allergies to Erytab didn't subside even after she has stopped taking it. And are there any medications to help her? Thanks a lot..