hi when i was young about 10 id say put a plaster on a cut and gave me a rash went to doctors and cant remember if he said i think he may have said i was allergic to plasters, have used plasters for the past 13 years with no issues i think it was probably just a one off but would this still bar me from entry and if so should i get some sort of test done to prove this and take results to my medical? Thanks