demodex mites blocking hair follicles and laying on skin. of dark brown skin infected with demodicosis.

demodex disease inflammation mite acne demodicosis demodectic diagnosis face human head illness immunity itching medic medical papule follicies folliculorum hair infected infestation inflamed insect parasite parasitic roots skin sebaceous subcutaneous veterinary medicine mange brevis arthropod treatment symptoms swelling pimple follicle 3d closeup eyelash sem scanning microscope electron black african brown