Allergy- Cotton Kapus test is used to detect the allergic infection in the body, and it is done by detecting the presence of IgE antibodies in the blood. If you have a cotton allergy then you must have symptoms such as sneezing, rash, coughing and sometimes it can even lead to severe and life-threatening illness. Thus in the case of such symptoms, it is essential to have an Allergy-cotton Kapus test. It is done on the blood sample, and the numbers of antibodies are counted to know whether it is a current infection or past infection. Moreover, in both the cases, you are proven to be allergic and should follow the treatment.