Men with lice underneath, usually refers to the pubic lice, mainly parasitic on the human vulva pubic hair, will cause local itching and blood scab symptoms, can be relieved by shaving the pubic hair, local cleaning, medication intervention. 1. Shave the pubic hair: after a man has lice on his lower side, he needs to shave the local pubic hair and perianal hair and burn them to prevent re-infection. 2. local cleaning: need to be contaminated clothing, bed sheets and covers, hot water ironing and sun exposure, can play the role of sterilization and disinfection. 3. Pharmaceutical intervention: patients can use sulfur soap for local cleaning, but the effect of using alone is not good, if necessary, you can also cooperate with the doctor to choose Kang skin lice Ning and disinfectant sprays to kill the eggs as well as adult lice. It is recommended that after a man has lice underneath, he should cooperate with the doctor to carry out standardized treatment, in order to reduce the adverse symptoms.