Acne is examined in a variety of ways. With a clinically experienced doctor, most patients can be clearly diagnosed at a glance without any tests, but clinically, fungal tests are sometimes done to see if it is related to a fungal infection, such as a co-infection with Sphaerococcus furfur; with a fungal infection, the medication will be different. Also sometimes doctors will do bacterial tests such as Trichophyton, but personally I basically don’t do this test because many times it doesn’t mean much to my treatment. It is advisable to choose to trust your doctor and then just have regular treatment.