Demodectic mange may also occur in very old dogs because function of the immune system often declines with age. Some dogs infected with demodectic mange may have secondary skin infections. The skin becomes dry, crusty, and brittle, it will ooze serum, blood or pus. A strong, offensive skin odor may be present due to a bacterial infection. The secondary infection responds to antibiotics like cephalexin or clavamox.
Conventional treatment depends upon the severity of the disease.
Generally, veterinarians recommend treatment with a dip containing Amitraz. The dip is repeated every 7-10 days. Although the dog may respond well to the dip and look normal, dipping must be continued until negative skin scrapings are found consistently for a few weeks. The dipping may have side effects. Sleepiness and itching are common for 24 hours after the dip.