Louse is a blood-sucking parasite living on animal surface. Lice living on human body can be divided into body lice, head lice, and pubic lice. Body lice live on skin. Head lice live on the scalp. Pubic lice live in pubic hair and pubic area. When lice bite human body, saliva enters human skin, causing itchy skin. Lice can spread many other diseases when they suck blood. Lice are more common in winter because people take less shower or bath in winter.
How is Lice treated in practice?