Take sulfur ointment as an example. After the patient takes a hot bath and wipes his body with soap, he should apply sulfur ointment externally, from the neck down to every place for three to five days.
After the treatment, change clothes, sheets, quilts, etc. Sterilization, disinfection, blanching and drying are carried out together. Generally, after a course of treatment, it can basically be cured. Stubborn people can come back for another course of treatment or at the same time cooperate with narrow-band UVB treatment to choose appropriate drugs and methods. Only when the treatment is done for a long time can they get better faster.