That's the only problem. Vets in India, that I know of, aren't that good. They don't do tests, but rather just diagnose by words. Do you think there would be a possibility to bring him here to get him fixed? Because if he stays there then there is no way for me to get him fixed due to the problem with finding a Vet who actually keeps their name well.
I don't know if there is some International Database of vets where I can find a reliable, and good Vet in India.
The vets we showed it to diagnosed it as a becterial infection and prescribed a creme sort of thing to heal it. That would only heal it for a few days and then it would go back to normal.
Do you have access to a vet who can perform a biopsy on your dog's skin?
I have looked at the photo, but a photo is not the same as performing diagnostics on the skin. If I had to make a guess I would think that your dog may have diffuse Demodectic mange with a secondary bacterial pyoderma. Another possibility is an auto-immune disease such as lupus. Both of these diseases can be cyclical, occurring some of the time, such as during the more humid times of the year, while at other times the pet is symptom free. A veterinary dermatologist is your best bet.
Please let me know if I can help you further!