Take a bath twice daily
Expose urself to the sunlight for 10 minutes daily.
Eat 600 gm raw cucumber daily and karela thrice a day.
Avoid sour (khatti) things.
Avoid using soft drinks, read meat.
Eat a tablet of Ginkgo Biloba daily.
Take 5 teaspoons of turmeric powder (haldi) and mix in 250 ml of mustard oil and apply on the white patches of skin, twice a day. Use this treatment regularly for one year.

And if the problem persists contact Dr. Khurram.