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1. It could be genetic, so Initially do visit a dermatologist/cosmetologist, prior to any alternate system of medicine.
2. Stay away from the sun during peak hours [11 AM to 4 PM] or ensure a good sunscreen applied on the area to limit damages.
3. sandal wood powder pack (rejuvenates skin)
Ingredients:-sandal wood powder, turmeric powder, milk
Method of preparation:-mix all the ingredients to form a paste. Apply this as face pack.
4. Tomato juice is one of the best natural home remedy which has been used for years. The enzymes and acid in tomatoes have lightening qualities like lemons.
PS. Take a proper guidance and follow up with a good dermatologist, get your
vitamin B12 level checked, as its deficiency can cause darkening of skin.
. To get proper result, you are suggested to use any face pack or cream for 3 to 4 months