scabies is a contagious skin disease caused by scabies infection, the treatment is very simple, is to kill scabies can be completely cured, recurrence of the situation, may be incomplete treatment, clothing, bedding is not disinfected, as follows: 1, treatment is not complete: after a few days of medication appears symptoms relief immediately stop, in fact, scabies is not completely cured, this time the need for treatment again, must be in accordance with the course of treatment So scabies recurs again.