To start with

I need the following details from all of you

you cooperation is essential to see some meaningful outcome in near future

You can sends these detail

Age

Spots appeared ( date and location)

First spot appeared ( Area/Location)

Main diet

water PH( indicator of acidity level)

Exposure to sun in hrs( nature of work etc)

medicine being used at present

improvement/de pigmentation noticed

changes in food habit

Family history if any

   all the above details of the effected family member can be given

remember we have to work for ourself till some one finds a remedy

Members can contribute there valuable suggestions

and every can put in there recommendations

regards

Raj