Welcome to healthcare magic forum
Thank you for your query.
I understand your concern regarding your skin problem
I am dr Gaurav patel ,dermatologist
and will answer your query.
I think he has given steroid
injection which lead to white patch
You need to apply specific cream over it
It will take 6-9 month to heal and come back to normal
In rare case we can not achieve good result.
I hope I answered your question.
Let me know if you have any further query.