If the substances found in the place where we work causes the swelling and narrowing down of airways of the lungs. This type of lung disorder is termed as occupational asthma. The test which is carried out to detect the disorder of occupational asthma caused by occupational silk allergen is termed as the allergen, individual occupational silk test. To diagnose occupational asthma by this test is considered to be same if compared to the diagnosis of other types of asthma. This test comprises lung function tests and allergen skin prick test.