Thanks for the query. Vitiligo is an immune system mediated skin disease which can be brought into remission by certain medications and life style changes. Now its believed to be a multi system disorder that can have other auto immune comorbidities. A proper assessment to determine the presence and severity of these comorbidities is needed. Most of the patients do well if they stick to the recommendations. Kindly see a dermatologist for a treatment plan.
Changing treatment at such a fast rate will not help or will complicate the situation.
The spread has to be arrested and the task of bringing back the colour has to be done.