Treatment methods for Teddy's skin disease:

1. If the skin disease is caused by bacteria, use hydrogen peroxide or medical alcohol, iodine and other disinfectants to clean the lesions, and then Apply topical ofloxacin gel or enoxacin ointment.

2. If it is a fungal skin disease, it can be treated with ultraviolet rays and antifungal ointments.

3. If it is allergic dermatitis, you can give the dog anti-allergic drugs and keep the dog away from allergens.

Causes of Teddy's skin disease:

1. It may be that external deworming is not performed regularly, and bacterial infection occurs after being bitten by mites.

2. It may also be that the dog is bathed too frequently, causing the stratum corneum of the skin to be damaged and invaded by bacteria or fungi.

3. It may also be caused by feeding too salty food, causing dryness of Teddy's skin and weakened resistance, leading to infection.

4. It is also possible that inappropriate shower gel was used to bathe Teddy, which irritated the skin and caused allergic dermatitis.