Cuterebra are botflies that spend the larvae stage of their lifecycle within rodent or rabbit hosts and can accidentally infect dogs. They enter through the nose, mouth or a skin wound. They usually develop a cyst under the skin that can be located as it enlarges and often a breathing hole can be seen. The larva (warble) will leave the dog when it is ready to form a pupa but it will often leave behind a secondary bacterial skin infection or abscess in the empty cyst. Rarely, the larva/cuterebra migrate aberrantly through the dog causing inflammation and damage to different tissues, including the brain and eyes, and even potentially cause a severe systemic inflammatory response. Treatment depends on what damage has been done and can include removal of the warble, debridement or removal of the cyst, antibiotics and symptomatic and supportive treatment of the results of aberrant migration. Prognosis is generally good if only the skin is involved. Cuterebra infection can not be prevented easily, so monitoring the dog regularly for signs is important.

Cheyletiellosis is an uncommon but highly contagious skin parasite of dogs, cats, humans, and rabbits caused by Cheyletiella spp. mites. The most important clinical sign of cheyletiellosis is scaling or dandruff. Due to the large size of the skin mite, it is easily seen under a microscope set on low magnification. Cheyletiella mites are susceptible to most topical insecticides and the prognosis is excellent.