concerning the allergy test, i'm not sure about your situation or indication. but the test is not a skin test, just a blood test recommended by my doctor who is a paediatrician. if you are interested, you can ask your doctor about that. it is not offered by any laboratory/hospital in hk at the moment. at first, i was surprised by my doctor's suggestion to have the test because i have no history/family history of allergy related diseases. but i have repeated mastitis which is not responded to standard treatment and the investigation and other tests cannot explain the situation. so, my doctor started the investigation on rare causes.