I believe that many dogs have suffered from various skin diseases, and parents are also having headaches. I believe that fungi and worms should be the two most troublesome, but can you distinguish them? Is it a mite infection or a fungal infection?
Similarities:
Fungi and mites are very similar: hair removal and itchyness. 
Differences:
1. The affected areas of fungal skin diseases are generally oval or round, with obvious boundaries with healthy skin. The affected areas of mites have no regular shape, and the boundaries with healthy skin are not very obvious.
2. The surface of the affected part of the fungus is generally covered with loose and dry light gray skin, which is easy to peel off. After peeling, the skin is smooth. Over time, a large area of ringworm will form. The skin does not thicken, and the skin on the affected part of the mites will thicken, forming wrinkles.
3. The skin of the fungus is subcutaneously infected with bacteria. After removing the skin, the skin damaged is honeycomb-like, with many oozing holes. After the skin of the mites forms small nodules, it turns into blisters. After the broken, yellow oily viscous substances seep out. After drying, it forms fish scale skin. After removing the skin, the skin is bright red, moist and bleeding.
4. The fungal itch is not strong, and the affected area of the worm has a strange itch.
Dogs have skin diseases, which is really a headache for all owners. In order to avoid getting sick, we must first take precautions. It is necessary to carefully wipe the dog's body every time you come out. In addition, using a bath solution for pets can also effectively avoid skin diseases.
Other precautions:
1. Do not go to grass with high trees and do not play with dogs with mites;
2. Supplementing vitamin B in moderation can greatly improve skin resistance. There are GG-specific Mekangbo B vitamin tablets.
3. Never eat seafood or cheese, as it will stimulate mites.
4. Keep the kennel cushions clean and dry. (It is best to disinfect regularly)
5. Bath in the sun frequently and exercise more.