Scabies is a contact, contagious skin disease caused by scabies, and scabies is generally not self-healing, and can be transmitted to family members, relatives, friends, classmates, and colleagues, and can even cause an epidemic in a small area. Therefore, scabies must be actively treated, scabies treatment needs to pay attention to the following matters: (1) patients must be closely isolated, not sleeping with other people during the disease, exchanging clothes, using each other’s underwear, bedding, etc., so as not to contact infect others. (2) For close contacts who are temporarily asymptomatic, such as family members of the patient or others living in a group dormitory, it is best to receive treatment at the same time in order to eradicate the disease. (3) It takes about 15 days for the life history of scabies from eggs and larvae to adult worms. Therefore, for those who are not cured by one treatment, it is generally necessary to repeat the treatment after an interval of 1-2 weeks. (4) Some people say that I have been treated regularly, why is it still itchy? The itching and eczema-like changes of the skin may continue for several weeks after the formal treatment has been killed, and this may be related to the state of hypersensitivity caused by the scabies, and is not a failure of treatment. At this time, it is recommended to take some antihistamines or sedative anti-itch drugs orally, and give short-term oral corticosteroids if necessary.