Scratch tests are performed by placing a small amount of allergen solution on the skin (often the forearm) and using a sterile lancet to gently introduce the allergen under the surface of the skin. After around 15 minutes, a raised itchy weal at the site of the allergen can suggest an underlying allergy. This test is performed during the appointment and so can give an immediate result. Multiple di...

We work with laboratories in the UK and EU for these tests which are performed on a blood sample. As well as tests for specific-IgE (previously called a RAST test) levels against individual allergens we can also perform component testing, which gives information about reactions to a particular part of the allergen allowing us to help assess severity and risk. Like Skin Prick Testing, it is importa...

Patch Tests` are used in the diagnosis of allergic contact dermatitis, when direct contact on the skin of a particular allergen can cause a delayed skin reaction. These tests are performed by putting adhesive patches on the skin, testing multiple allergens at a time. The test takes several days to complete with reviews with the doctor or nurse during that period.