Ghost shaving is also known as patchy baldness and it is not contagious. Patch baldness is a sudden onset of limited patchy alopecia areata hair disease, generally patch baldness 3-6 months will recover by itself, some patch baldness will recur repeatedly, you can check whether the new growth of hair is easy to become white, if it is to pay attention to the uncertainty of the best is to go to the regular hair hospital to carry out. Treatment of appropriate relaxation stress, maintain a healthy rhythm of life, eat more food conducive to hair growth, pay attention to more rest, do not stay up late, do not be too overworked, and usually pay attention to their emotions, do not be overly anxious. Foods conducive to hair growth are black sesame, black beans, wheat and so on. In addition, you can also take some nutritious hair growth drugs, such as Jingwu capsule, Thin Zhi tablets or fat removal and hair growth tablets.