The invention relates to the technical field of medical devices, and provides an accurately adjustable shading device for dermatological herpes zoster phototherapy, the shading device comprises a support plate, an adjusting
assembly, an efficient
assembly and a sanitary
assembly, the bottom of the support plate is fixedly connected with two symmetrically arranged support legs, and through the arrangement of structures such as a
threaded rod and an adjusting rod, the shading device can be used for the dermatological herpes zoster phototherapy. Through the arrangement of the
threaded rod, an elastic sleeve and other assemblies can be driven to integrally move in the horizontal direction, the position of the
skin lesion of the
human body can be directly positioned to replace a handheld treatment mode, and after basic positioning, each adjusting rod can be independently rotated according to the specific shape of the
skin lesion range; when each adjusting rod rotates, the shape of the elastic sleeve can be driven to change until the elastic sleeve is adjusted to be roughly the same as the
skin lesion range, finally, the elastic sleeve is attached to the skin through the
electric control air cylinder, the adjustable effect is achieved, and through the technical scheme, the problems that in the prior art, shading cannot be adjusted, and the
treatment effect is poor are solved.