Dermatitis in dogs can be caused by a variety of factors, including allergies, infections, and parasites 1. Treatment for dermatitis will depend on the underlying cause of the condition. Some common treatments include:

1. Identification and avoidance of the allergen: If the dermatitis is caused by an allergy, identifying and avoiding the allergen can help reduce symptoms.
2. Medicated baths: Medicated shampoos can help soothe the skin and reduce inflammation.
3. Antibiotics and antifungals: If the dermatitis is caused by a bacterial or fungal infection, antibiotics or antifungal medications may be prescribed.
4. Supplements: Omega-3 and Omega-6 essential fatty acids can help improve skin health.
5. Anti-itch medications: For more serious symptoms, anti-itch medications might be appropriate.

It’s important to consult with a veterinarian to determine the underlying cause of your dog’s dermatitis and develop an appropriate treatment plan. I hope this information helps!