① Take a bath with warm water first, then change into a clean old clothes and pants. ② Externally apply 5%-10% sulfur ointment all over the body; the scope of application starts from the neck all over the body, including finger crevices, toe crevices, wrists, breasts, armpits, thigh roots, anus and external genital areas, etc. should be applied evenly, even if there is no rash; the parts with rash should be applied more often and rubbed repeatedly for a while; in this way, the dose of medicine should be about 20-30 grams each time, twice a day for 3-5 days. ③In order to keep the effect of the medicine and kill the scabies better, it is better not to take a bath and change clothes during the application of the medicine. ④After the 5th day, take a bath and change to clean clothes and pants; at the same time, boil and disinfect the underwear, underwear, bedding, sheets, pillowcases, etc. that were changed, and disinfect the cotton core of the bedding in the sun; store the clothes that were changed temporarily and try to use them again after a month. ⑤ At the same time, take some oral antihistamines or sedative and antipruritic drugs, and if necessary, give short-term oral corticosteroids.