Treating black spot on skin

Provide a lot of turmeric, saffron eg 1 kg peeled and thinly sliced ​​and then washed and dried. saved for supplies.
treatment:
     Take approximately 10 slices of dried saffron, the water boiled with 2 cups and set aside 1 cup. In the boiling of turmeric were givencoconut palm sugar or sugar according to taste as sweet. when itgets warm lukewarm continue to drink.
drink the potion in the morning and evening before bed once.