Whether there is still scabies on the body can be judged by clinical symptom performance as well as microscopic examination: 1. Symptom performance: scabies infection will generally appear as small papules and tunnels at the site of the lesions, and scabies will be hidden at the blind end of the tunnels and behave as pinpoint white dots. After the scabies infection, the mechanical stimulation of the scabies digging tunnel, and the secretions produced by the scabies will cause the patient to produce intense itching, the itching is lighter during the day and intensifies at night, more obvious after sleep. If the human skin is normal and the papules and black line-like tunnels gradually disappear, as well as the intense itching subsides, it means that there is no scabies on the body; 2. Microscopic examination: you can pick the white spot at the tunnel with a sterilized needle, or use the sterilized mineral oil to drop on the papules and remove the sample with a blade for microscopic examination, or directly observe the lesion site using a dissecting microscope. If the results of the examination do not reveal the remains of scabies, eggs and other substances, it means that there is no more scabies on the body. If the patient’s itching is still severe and scabies remains, eggs, and feces can be found under microscopic examination, specific treatment under the guidance of a physician is also required. In addition, care should be taken to avoid contact with others as much as possible and to disinfect the changed clothes in time to avoid infecting others.