Hi, heading to hospital this week to get patch testing done on back. My eczema/ allergies went out of control this year and I am only starting to get this under control now due to an array of tablets and creams. Anyway, am slightly worried tonight... my back has a slight rash all weekend. Now, will I go crazy with itch from plasters applied or worse, a bad reaction. Now I know the idea is to identify what I may be allergic to but I am a bit nervous that my sensitive skin may go mad and I am back to square one...itch itch.Any help appreciated X