RINGWORM
Although now and then affected with ringworm, the dog does not suffer from the skin disease anything like so commonly as cattle.
The chief variety seen upon the dog is that induced by the vegetable parasite, Tricophyton tonsurans, which assumes a circular, or shield-like form. Honeycomb ringworm is another variety. The patch is about an inch long as a rule, scaly, and shows the hairs broken across, giving it a stubbly appearance. It is easily recognised.
Ringworm can be readily transferred from one dog to another, or to animals of different species, and the converse.
Treatment.—Paint the bare patch or patches with iodine liniment; groom well and feed well. Keep dog away from others until cured.
SARCOPTIC MANGE
This is a very common form of mange, though often confused with non-parasitic eczema.
The mange mite is known as Sarcoptes canis, and takes up its abode upon the superficial dermoid structures.
The irritation thus induced, causes the dog to bite and scratch the part, ending in the production of a raw, weeping surface, extending from point to point, unless something is done to check the ravages of the mites. With licking, biting and scratching, these parasites are transferred as indicated, and an artificial form of eczema induced.
The diagnosis can be confirmed by microscopic examination of the under surfaces of the crusts upon the sores.