Vitiligo is a common cause of white or depigmented patches on the skin. It is due to the absence of pigment cells called melanocytes in the skin.
These cells confer the pigment colour to the skin and their absence leads to the skin looking white.
Treatment options for vitiligo include:
1. Topical creams like topical steroids and calcineurin inhibitors.
2. Phototherapy. Ultraviolet light can be used to stimulate the repigmentation of the skin.
3. Surgical options such as melanocyte grafting.
It is best to see your dermatologist to get a proper assessment and diagnosis of your condition and further discussion of the treatment options.