Hair Loss At The Nape Of The Neck What Are The Main See full list on drugs. com. See full list on drugs. com. Your doctor will diagnose the cause of your hair loss based on your medical history, the medications you take, your nutritional status, your hairdressing habits and a physical examination. if your doctor suspects a fungal infection of your scalp, he or she may take a hair sample for laboratory testing. blood tests probably will be needed if your doctor suspects a medical illness (such as lupus) or a thyroid persoalan, iron deficiency or sex-hormone imbalance. Although there is no permanent cure for alopecia areata, there are ways that may short-circuit the body's autoimmune reaction in the scalp and encourage hair regrowth. options include: 1. cortisone cream applied on the bald patches or cortisone solution injected into the bald patches to suppress the immune reaction 2. immunotherapy using chemicals such as diphenylcyclopropenone (also called diphencyprone or dcp) or sq...