The patient: the disease 10 years, the lower body abdomen and hands Previously, the neck has, using bone marrow external application is good, but other places appear again Introduce can control the development of medicine and treatment of medicine. The second hospital of Sun Yat-sen University dermatology department Chen Jianhao: If the vitiligo area is large and scattered, you should add sebaceous steroid hormone to control. Patient: please tell what medicine is used to control, be more specific, okay? What do tid and qd stand for? I am looking forward to it. Chen Jianhao, Department of Dermatology, Second Affiliated Hospital of Sun Yat-sen University: Didn’t it say that sebaceous steroid hormone should be added to control the condition? Patient: Dr. Chen I have a question I do not understand, I heard some doctors say that there are four kinds of drugs may cause white spots: a, artificial spices, antihypertensive diuretics; two, eye drops; three, cystine, cysteine, diethylalanine, cyanase amine. iv. thiourea, thiouracil, thyroxine, epinephrine, noradrenaline. And some of the sebaceous steroid hormone drugs (prednisone acetate is an adrenal drug) are adrenal drugs, what is going on? I am looking forward to a response. Is prednisone acetate methylprednisone? Jianhao Chen, Department of Dermatology, The Second Hospital of Sun Yat-sen University: Prednisone acetate and methylprednisone are different sebaceous steroid hormones. Epinephrine, noradrenaline and sebaceous steroid hormone are totally different.